Online research in philosophy

: It is possible and necessary to compare stretches of human life with other goods, such as the good of conserving resources for others. A minute of human life is not of infinite value; all else being equal, a minute of life is less valuable than 10 years of the same life. Nevertheless, this ability to evaluate human life does not necessarily lead to total commodification of human life.

The work of Dan Brock and Helga Kuhse is typical of the current stream of thought rejecting the validity of sanctity of life appeals to instill objective inviolable worth in human life regardless of the quality of life of the patient. The context of a person's life is supremely important. In their systems life can have high value, yet the value of life can be outweighed by the force of other disvalues. The notion of quality of life has increasingly come to signify the measurement of the worth of a person's life itself. Having a life equals personal life. Any objectivity to life resides in 'personal', 'biographical', or 'creative' life, not mere biological life. Personal life represents the minimal threshold for any objective worth. In responding to this challenge, John Finnis has argued extensively that life is an intrinsic good – a basic human good. Following from our grasp of human life as a basic incommensurable good, it cannot be practically reasonable both to affirm that (a) 'human life is a basic human good', and (b) that 'human life qua human life can be intentionally acted against to its destruction'. Yet, if the good of human life can be considered self-evident, the self-evidence of the basic human good qua good does not mean that dialectical reasoning cannot be engaged in to indirectly support the practical reasonableness of respecting the good of human life in the deliberative choices that persons make concerning their actions. It is to the use of such dialectical reasoning, supportive of the status of human life as such a basic human good, that the article is primarily concerned to draw out and articulate.

What makes killing morally wrong? And what makes killing morally worse than letting die? Standard answers to these two questions presuppose that killing someone involves shortening that person's life. Yet, as I argue in the first two sections of this article, this presupposition is false: Life-prolonging killings are conceivable. In the last two sections of the article, I explore the significance of the conceivability of such killings for various discussions of the two questions just mentioned. In particular, I show why the conceivability of life-prolonging killings renders Frances M. Kamm's attempt to provide an answer to the second question problematic.