Psychology has made a lot less progress than it could have because too many psychologists know too little about other animals. - Steve Stewart-Williams

The claim that women have a stronger average parental urge than men is sometimes viewed as a sexist generalization. But it’s only sexist if we take a dim view of the trait in question: the parental urge. One could turn the accusation on its head: Those who view the evolutionist’s claim (that women are more parental than men) as sexist are actually being sexist themselves, because they’re taking a negative view of a trait that’s usually found more strongly in females than males. They are therefore prizing prototypically masculine traits more highly than prototypically feminine ones.

This is the irritating reality of the human condition: Whatever we do, we’re left with unfulfilled desires. Human beings are chronically conflicted animals. And that’s because that’s what selection made us.

Humans are as dependent on culture as we are on oxygen; without it, we’re as naked and vulnerable as a crab without a shell.