Peter Singer

Americans think they're the leader of the world and yet can say that they're putting their economic interests ahead of the lives of - quite possibly - tens of millions of people who over the next 50 years will die because of floods or storms or tropical diseases or whatever. I guess that sort of thing makes me angry.

I think one of the most important directions to be pursued in the 'sciences of human action' is to develop a natural-law ethics based on nature rather than, or at least to supplement, ethics based on theological revelation.