If you have a personality predisposed to liberalism, you might gravitate more to the artsy crowd or the anti-establishment crowd. And then those peers will affect you, and they will give you values, and you will copy them.

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.

Legalizing homosexuality is not the first step on a slippery slope to legalizing everything.

If you think that moral reasoning is something we do to figure out the truth, you’ll be constantly frustrated by how foolish, biased, and illogical people become when they disagree with you.

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.

Religion and science, for example, are often though to be opponents, but as I have shown, the insights of ancient religions and of modern science are both needed to reach a full understanding of human nature and the conditions of human satisfaction. The ancients may have known little about biology, chemistry, physics, but many were good psychologists.

Liberals and conservatives are opponents in the most literal sense, each using the myth of pure evil to demonize the other side and unite there own.