I discuss three kinds of relationship between ends and means (or "things that promote ends") in the Aristotelian ethical theory, in order to clarify how moral virtues and phronesis are related both in adopting ends and in determining means for virtuous actions. Phronesis seems to be mainly charged with determining means for an end given by the moral virtues, but it must involve some conception of ends too. Phronesis cannot be parasitic on moral virtue concerning the conception of ends, for (...) otherwise it will lack intrinsic moral value. I argue that the intrinsic moral value of phronesis can be better understood through a certain kind of relation between means and ends that has not received much attention. (shrink)

This is an introductory handbook for some of the main themes around the notion of predication in Aristotle. It does not aim at being exhaustive, but only sketches some important lines about the subject; it contains an introductory essay, besides the translation (into Portuguese) and commentary of basic texts (such as Posterior Analytics I-22, Categories 1-5, Interpretation 1-6 etc.).

A Lasting tradition among the ancients marked Sicily as the birthplace and Tisias and Corax as inventors of the art of rhetoric: and in this tradition, legendary though it became, there is a stricter truth than in most of the stories related about the foundation of invented arts. We, with more elaborate historical views, shall still say of rhetoric that it was created at a certain epoch; and can still point to the Sicilians Tisias and Corax as its authors. Oratory, (...) to be sure, has existed almost as long as speech. Its beginnings are prehistoric, and must in any case be imperceptible; and if by rhetorician we meant no more than one who uses speech with more than common effect, we might set the origin of rhetoric as far back as we chose, and could hardly bring it lower than the beginning of recorded literature. Indeed we are told that under the Antonine Emperors the eminent scholar Telephus of Pergamum wrote a book on Rhetoric in Homer, in which he illustrated from the Poet the whole contemporary system of the art down to the thirteen constitutions of Minucian; and in the same spirit the Venerable Bede, resenting the claim of the Greeks to have invented tropes and figures of speech, wrote a short work to show that they could all be found in Holy Scripture. But such inquiries, even when conducted less foolishly than by Telephus and less incompetently than by Bede, are irrelevant to the proper history of rhetoric. Let the practice of oratory have begun when it may, the first attempts known to us in Classical Antiquity to formulate a series of principles for the art of speech were made in the fifth century before Christ. These earliest systems were naturally very imperfect: they could not immediately be either comprehensive or well organized. But they were something that had not existed at all before: methodical principles for speaking. At the moment when these were first set out the art of rhetoric began. (shrink)

This paper attempts to clarify the nature and the importance of a third kind of sophistic argument that is not always found in the classification of those arguments in the secondary literature. An argument of the third kind not only is a valid one, but is also constituted of true propositions. What makes it a sophistic argument is the fact that it produces a false semblance of scientific explanation: its explanation seems to be appropriate to the explanandum without being so. (...) Evidence from this kind of argument comes from Sophistic Refutations 11, and Brison’s attempt to square the circle should be counted as one of its instances. (shrink)

This paper examines what Aristotle could have meant in Nicomachean Ethics 1106b 14-16, when he says that moral virtue is more exact than craft. Aristotle’s meaning cannot be that moral knowledge is more exact than technical knowledge. Neither the practical knowledge that an agent has about the precepts guiding his actions nor the philosophical knowledge framed in a moral theory could be described as “more exact than craft- knowledge”. My point is that Aristotle’s meaning is better understood if he is (...) taken to be talking about the requirements for doing virtuously a virtuous action. Being successful at doing a virtuous action is “more exact” than being successful at making a good craft-product in the sense that more criteria for successfulness are required. (shrink)