Many species reciprocate, but only humans gossip, and much of what we gossip about is the vale of other people as partners for reciprocal relationships.

Individuals who could not form cooperative alliances, on average, died sooner and left fewer children. And so we are the descendants of the successful cooperators.

Economic issues are just as much moral issues as social issues.

We can tolerate great diversity in our aesthetic beliefs, but we can't tolerate much diversity in our moral beliefs.

I think moral philosophy is speculation on how we ought to live together done by people who have very little clue how people work. So I think most moral philosophy is disconnected from the species that we happen to be. In fact, they like it that way. Many moral philosophers insist that morality grows out of our rationality, that it applies to any rational being anywhere in the universe, and that it is not based on contingent or coincidental facts about our evolution.

Morality binds and blinds.

Many species reciprocate, but only humans gossip, and much of what we gossip about is the vale of other people as partners for reciprocal relationships.