Derek Parfit on Ethics

This page displays 1 quotation attributed to Derek Parfit and filed under "Ethics" in QuoteLineage. The selection is ordered by stored importance and quality scores, not citation counts. A topic label describes how an entry is catalogued; it does not establish the theme's importance in the author's work.

Attributed to Derek Parfit, entry #63630: "When some principle requires us to act in some way, this principle’s acceptability cannot depend on whether such acts are often possible. We cannot defend some principle by claimi…"