The fundamental criterion for judging any procedure is the justice of its likely results.

We may suppose that everyone has in himself the whole form of a moral conception.

Man is a historical being : The realisations of the powers of human individuals living at any one time takes the cooperation of many generations (or even societies) over a long period of time. By contrast with humankind, every individual animal can and does do what for the most part it might do, or what any other of its kind might or can do that lives at the same time.

The strength of the claims of formal justice, of obedience to system, clearly depend upon the substantive justice of institutions and the possibilities of their reform.

The sense of justice is continuous with the love of mankind.

If A were not allowed his better position, B would be even worse off than he is.

What's important is that people give the kinds of reasons that can be understood and appraised apart from their particular comprehensive doctrines: for example, that they argue against physician-assisted suicide not just by speculating about God's wrath or the afterlife, but by talking about what they see as assisted suicide's potential injustices.