96 found
Order:
  1. Universes.John Leslie - 1989 - Routledge.
    One of the first books to address what has come to be known as the philosophy of cosmology, Universes asks, "Why does the universe exist?", arguing that the universe is "fine tuned for producing life." For example, if the universe's early expansion speed had been smaller by one part in a million, then it would have recollapsed rapidly; with an equivalently tiny speed increase, no galaxies would have formed. Either way, this universe would have been lifeless.
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark   78 citations  
  2. The End of the World: The Science and Ethics of Human Extinction.John Leslie - 1996 - Routledge.
    Are we in imminent danger of extinction? Yes, we probably are, argues John Leslie in his chilling account of the dangers facing the human race as we approach the second millenium. The End of the World is a sobering assessment of the many disasters that scientists have predicted and speculated on as leading to apocalypse. In the first comprehensive survey, potential catastrophes - ranging from deadly diseases to high-energy physics experiments - are explored to help us understand the risks. One (...)
    Direct download  
     
    Export citation  
     
    Bookmark   22 citations  
  3.  42
    Value and Existence.John Leslie - 1979 - Blackwell.
  4.  6
    Universes.John Leslie - 1989 - Routledge.
    First published in 2002. Routledge is an imprint of Taylor & Francis, an informa company.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   13 citations  
  5.  26
    What God Might Be.John Leslie - 2019 - International Journal for Philosophy of Religion 85 (1):63-75.
    As Plato suggested, the cosmos may exist because this is ethically necessary. It then might well consist of infinitely many minds, each itself infinite through eternally knowing all that was worth knowing. Our universe would exist inside one of them, as a pattern in its thought. But intrinsic value could be a fiction, making Plato’s suggestion a non-starter. Again, indeterministic free will might have immense value. Those infinite minds could then differ from one another in constantly changing ways through the (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  6. Is the End of the World Nigh?John Leslie - 1990 - Philosophical Quarterly 40 (158):65-72.
    No categories
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   14 citations  
  7. Time and the Anthropic Principle.John Leslie - 1992 - Mind 101 (403):521-540.
    Carter’s anthropic principle reminds us that intelligent life can find itself only in life-permitting times, places or universes. The principle concerns a possible observational selection effect, not a designing deity. It has no special concern with humans, nor does it say that intelligent life is inevitable and common. Barrow and Tipler, who discuss all this, are not biologically ignorant. As argued in "Universes" (Leslie, 1989) they may well be right in thinking that "fine tuning" of force strengths and particle masses, (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   12 citations  
  8.  71
    Infinite Minds: A Philosophical Cosmology.John Leslie - 2001 - Oxford University Press.
    The cosmos exists just because of the ethical need for it We, and all the intricate structures of our universe, exist as thoughts in a divine mind that knows everything worth knowing. There could also be infinitely many other universes in this mind....It may be hard to believe that the universe is as Leslie says it is--but it is also hard to resist his compelling ideas and arguments.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   8 citations  
  9. The Mystery of Existence: Why is There Anything at All.John Leslie & Robert Lawrence Kuhn (eds.) - 2013 - Wiley-Blackwell.
    This compelling study of the origins of all that exists, including explanations of the entire material world, traces the responses of philosophers and scientists to the most elemental and haunting question of all: why is _anything_ here—or anything _anywhere_? Why is there something rather than nothing? Why not nothing? It includes the thoughts of dozens of luminaries from Plato and Aristotle to Aquinas and Leibniz to modern thinkers such as physicists Stephen Hawking and Steven Weinberg, philosophers Robert Nozick and Derek (...)
    No categories
     
    Export citation  
     
    Bookmark   3 citations  
  10. Anthropic Principle, World Ensemble, Design.John Leslie - 1982 - American Philosophical Quarterly 19 (2):141 - 151.
  11.  70
    No Inverse Gambler’s Fallacy in Cosmology.John Leslie - 1988 - Mind 97 (386):269-272.
  12. Value and Existence.John Leslie - 1980 - Philosophy 55 (212):275-277.
    No categories
     
    Export citation  
     
    Bookmark   11 citations  
  13.  71
    Doom and Probabilities.John Leslie - 1993 - Mind 102 (407):489-491.
  14.  57
    Cosmology and Theology.John Leslie - forthcoming - Stanford Encyclopedia of Philosophy.
    No categories
    Direct download  
     
    Export citation  
     
    Bookmark   3 citations  
  15.  36
    Observer‐Relative Chances and the Doomsday Argument.John Leslie - 1997 - Inquiry: An Interdisciplinary Journal of Philosophy 40 (4):427 – 436.
    Suppose various observers are divided randomly into two groups, a large and a small. Not knowing into which group anyone has been sent, each can have strong grounds for believing in being in the large group, although recognizing that every observer in the other group has equally powerful reasons for thinking of this other group as the large one. Justified belief can therefore be observer-relative in a rather paradoxical way. Appreciating this allows one to reject an intriguing new objection against (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   9 citations  
  16.  52
    The Riddle of Existence: An Essay in Idealistic Metaphysics. Nicholas Rescher.John Leslie - 1985 - Philosophy of Science 52 (3):485-486.
  17.  45
    Efforts to Explain All Existence.John Leslie - 1978 - Mind 87 (346):181-194.
    No categories
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   6 citations  
  18.  48
    The Theory That the World Exists Because It Should.John Leslie - 1970 - American Philosophical Quarterly 7 (4):286 - 298.
  19.  48
    Doomsday Revisited.John Leslie - 1992 - Philosophical Quarterly 42 (166):85-89.
  20.  80
    Ensuring Two Bird Deaths with One Throw.John Leslie - 1991 - Mind 100 (1):73-86.
  21.  90
    Immortality Defended.John Leslie - 2007 - Wiley-Blackwell.
    Might we be parts of a divine mind? Could anything like an afterlife make sense? Starting with a Platonic answer to why the world exists, _Immortality Defended_ suggests we could well be immortal in all of three separate ways. Tackles the fundamental questions posed by our very existence, among them, "why does the cosmos exist?", "is there a divine mind or God?", and "in what sense might we have afterlives?" Defends a belief in immortality, without the need for a religious (...)
    Direct download  
     
    Export citation  
     
    Bookmark   2 citations  
  22.  33
    The World's Necessary Existence.John Leslie - 1980 - International Journal for Philosophy of Religion 11 (4):207 - 224.
  23. Observership in Cosmology: The Anthropic Principle.John Leslie - 1983 - Mind 92 (368):573-579.
  24. Life, Death, and Meaning: Key Philosophical Readings on the Big Questions.Margaret A. Boden, Richard B. Brandt, Peter Caldwell, Fred Feldman, John Martin Fischer, Richard Hare, David Hume, W. D. Joske, Immanuel Kant, Frederick Kaufman, James Lenman, John Leslie, Steven Luper-Foy, Michaelis Michael, Thomas Nagel, Robert Nozick, Derek Parfit, George Pitcher, Stephen E. Rosenbaum, David Schmidtz, Arthur Schopenhauer, David B. Suits, Richard Taylor & Bernard Williams - 2004 - Rowman & Littlefield Publishers.
    Do our lives have meaning? Should we create more people? Is death bad? Should we commit suicide? Would it be better if we were immortal? Should we be optimistic or pessimistic? Life, Death, and Meaning brings together key readings, primarily by English-speaking philosophers, on such 'big questions.'.
     
    Export citation  
     
    Bookmark   2 citations  
  25.  10
    Universes.Physical Cosmology and Philosophy.John Leslie - 1994 - Noûs 28 (2):262-269.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  26.  33
    The Need to Generate Happy People.John Leslie - 1989 - Philosophia 19 (1):29-33.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  27.  22
    Mackie on Neoplatonism's 'Replacement for God'.John Leslie - 1986 - Religious Studies 22 (3-4):325 - 342.
    David Hume's greatness depends in large part on how his writings hint at beautiful and coherent theories which are recognizably Humean despite their divergences from the untidy originals. Now, perhaps the clearest vision of a contradiction–free Platonic Form of Hume was had by J. L. Mackie; he described it in such masterpieces as The Cement of the Universe, Ethics: Inventing Right and Wrong, and The Miracle of Theism. How successful is this last in its attack on theism? I shall discuss (...)
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   3 citations  
  28. The Risk That Humans Will Soon Be Extinct.John Leslie - 2010 - Philosophy 85 (4):447-463.
    If it survives for a little longer, the human race will probably start to spread across its galaxy. Germ warfare, though, or environmental collapse or many another factor might shortly drive humans to extinction. Are they likely to avoid it? Well, suppose they spread across the galaxy. Of all humans who would ever have been born, maybe only one in a hundred thousand would have lived as early as you. If, in contrast, humans soon became extinct then because of the (...)
    Direct download (6 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  29.  28
    Przejawy delikatnego dostrojenia.John Leslie - 1994 - Zagadnienia Filozoficzne W Nauce 16.
    No categories
    Direct download  
    Translate
     
     
    Export citation  
     
    Bookmark   2 citations  
  30.  52
    Our Place in the Cosmos.John Leslie - 2000 - Philosophy 75 (1):5-24.
    Our world seems fine tuned in life-permitting ways. If the cosmos contains many universes, only the appropriately tuned ones can be seen by living beings. An alternative is that God acted as Fine Tuner. We might account for God in terms of an eternally powerful ethical requirement that God exists, rejecting J. L. Mackie's judgment that absolute ethical requirements are incredibly queer. Mackie viewed such requirements as logically possible, so if they were absent then this would seem a matter of (...)
    No categories
    Direct download (5 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  31.  42
    Ethically Required Existence.John Leslie - 1972 - American Philosophical Quarterly 9 (3):215 - 224.
    No categories
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  32. Design and the Anthropic Principle.John Leslie - 1992 - Biology and Philosophy 7 (3):349-354.
  33.  11
    Mackie on Neoplatonism's ‘Replacement for God’.John Leslie - 1986 - Religious Studies 22 (3-4):325-342.
    David Hume's greatness depends in large part on how his writings hint at beautiful and coherent theories which are recognizably Humean despite their divergences from the untidy originals. Now, perhaps the clearest vision of a contradiction–free Platonic Form of Hume was had by J. L. Mackie; he described it in such masterpieces as The Cement of the Universe, Ethics: Inventing Right and Wrong, and The Miracle of Theism. How successful is this last in its attack on theism? I shall discuss (...)
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark   2 citations  
  34.  17
    Testing the Doomsday Argument.John Leslie - 1994 - Journal of Applied Philosophy 11 (1):31-44.
  35.  9
    Morality in a World Guaranteed Best Possible.John Leslie - 1971 - Studia Leibnitiana 3 (3):199 - 205.
    Direct download  
     
    Export citation  
     
    Bookmark   2 citations  
  36. Anthropic Explanations in Cosmology.John Leslie - 1986 - PSA: Proceedings of the Biennial Meeting of the Philosophy of Science Association 1986:87 - 95.
    Cosmologists using the Anthropic Principle claim that if our universe had been much different then nobody would exist to observe it. This may become explanatory when one accepts the actual existence of multiple "universes": gigantic, largely or entirely separate systems having very varied properties. Ian Hacking has urged, though, that an Inverse Gambler's Fallacy is committed during many attempts to formulate anthropic explanations. Besides disagreeing with him, the paper makes several further points in support of such explanations, in particular against (...)
    Direct download  
     
    Export citation  
     
    Bookmark   1 citation  
  37. Anthropic Prediction.John Leslie - 1994 - Philosophia 23 (1-4):117-144.
  38.  26
    Demons, Vats and the Cosmos.John Leslie - 1989 - Philosophical Papers 18 (2):169-188.
  39.  27
    A Difficulty for Everett's Many‐Worlds Theory.John Leslie - 1996 - International Studies in the Philosophy of Science 10 (3):239 – 246.
    Abstract An argument originated by Brandon Carter presents humankind's imminent extinction as likelier than we should otherwise have judged. We ought to be reluctant to think ourselves among the earliest 0.01 %, for instance, of all humans who will ever have lived; yet we should be in that tiny group if the human race survived long, even at just its present size. While such reasoning attracts many criticisms, perhaps the only grave one is that indeterminism means there is not yet (...)
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  40. The Scientific Weight of Anthropic and Teleological Principles.John Leslie - 1986 - In Current Issues in Teleology. Univ Pr of America.
    OBVIOUSLY, OBSERVERS EXIST ONLY WHERE LIFE IS POSSIBLE ("THE ANTHROPIC PRINCIPLE"). NOW, THERE MAY BE MANY COSMIC REGIONS, PERHAPS GIGANTIC AND LARGELY OR ENTIRELY SEPARATE "MULTIPLE UNIVERSES," OF WHICH ONLY VERY FEW PERMIT LIFE’S EVOLUTION. GUTH’S COSMIC INFLATION MAY BE INVOLVED HERE, AND DOMAINS WITH DIFFERENTLY BROKEN SYMMETRIES. APPARENT LIFE-ENCOURAGING FINE-TUNING OF NATURAL CONSTANTS MIGHT BE UNDERSTOOD AGAINST THIS BACKGROUND. MANY SCIENTISTS PREDICTIONS RESULT. AN ALTERNATIVE ACCOUNT SPEAKS OF THE WORLD’S CREATIVE ETHICAL REQUIREDNESS ("GOD").
    Translate
     
     
    Export citation  
     
    Bookmark   1 citation  
  41.  15
    The Value of Time.John Leslie - 1976 - American Philosophical Quarterly 13 (2):109 - 121.
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark   1 citation  
  42. Life, Death, and Meaning: Key Philosophical Readings on the Big Questions.David Benatar, Margaret A. Boden, Peter Caldwell, Fred Feldman, John Martin Fischer, Richard Hare, David Hume, W. D. Joske, Immanuel Kant, Frederick Kaufman, James Lenman, John Leslie, Steven Luper, Michaelis Michael, Thomas Nagel, Robert Nozick, Derek Parfit, George Pitcher, Stephen E. Rosenbaum, David Schmidtz, Arthur Schopenhauer, David B. Suits, Richard Taylor, Bruce N. Waller & Bernard Williams (eds.) - 2004 - Rowman & Littlefield Publishers.
    Do our lives have meaning? Should we create more people? Is death bad? Should we commit suicide? Would it be better to be immortal? Should we be optimistic or pessimistic? Since Life, Death, and Meaning: Key Philosophical Readings on the Big Questions first appeared, David Benatar's distinctive anthology designed to introduce students to the key existential questions of philosophy has won a devoted following among users in a variety of upper-level and even introductory courses.
     
    Export citation  
     
    Bookmark  
  43. International Studies in the Philosophy of Science.Lars Bergstrom, John Forge, Louis Marinoff, John Leslie & Sami Pihlstrom - 1996 - International Studies in the Philosophy of Science: Isps 10:187.
     
    Export citation  
     
    Bookmark  
  44.  12
    Apq Library of Philosophy.Brian Ellis, Hugh Lehman, Nicholas Rescher & John Leslie - 1977 - Verifiche: Rivista Trimestrale di Scienze Umane 6 (2).
  45.  4
    The Study of Time II.John Leslie - 1978 - Philosophy of Science 45 (2):322-325.
    Direct download  
     
    Export citation  
     
    Bookmark  
  46.  11
    Book Review:The Study of Time II J. T. Fraser, N. Lawrence. [REVIEW]John Leslie - 1978 - Philosophy of Science 45 (2):322-.
    Direct download (3 more)  
     
    Export citation  
     
    Bookmark  
  47.  7
    God and Scientific Verifiability.John Leslie - 1978 - Philosophy 53 (203):71 - 79.
    What force has the Argument from Design—the attempt to argue to Design, and hence to God, from various alleged signs of it in Nature? Some preliminary points. First: To establish the reality of God need not be to prove that there exists an actual person meriting that name. Many theologians, for example P. Tillich, have denied that God is any manner of existent. On a fairly simple and attractive interpretation, their view is that ‘God’ names the principle that ethical requirements (...)
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  48.  69
    Why Not Let Life Become Extinct?John Leslie - 1983 - Philosophy 58 (225):329 - 338.
    Would Earth be sadly underpopulated if all life on it had died? I shall argue for a Yes, against two main groups. In the first are those who say that life's absence could not be sad, a pity, something less than ideal, because there would be nobody to be sad about it. The second group maintains that life's absence would be preferable to its presence since living can be nasty.
    Direct download (4 more)  
     
    Export citation  
     
    Bookmark  
  49.  26
    Axiogenesis.John Leslie - 2011 - Review of Metaphysics 65 (2):441-443.
    Direct download (4 more)  
    Translate
     
     
    Export citation  
     
    Bookmark  
  50.  12
    Axiogenesis: An Essay in Metaphysical Optimalism. [REVIEW]John Leslie - 2011 - Review of Metaphysics 65 (2):441-443.
    No categories
    Direct download (2 more)  
     
    Export citation  
     
    Bookmark  
1 — 50 / 96