"Parental investment is the key to understanding the origins of sex differences."

The first man who， having enclosed a piece of ground， bethought himself of saying 'This is mine，' and found people simple enough to believe him， was the real founder of civil society.

That's what she said.

Creativity is a central source of meaning in our lives.

"Adaptation is the key to understanding behavior."

经济学的研究最终是对人类行为及其后果的研究。

Every challenge in agriculture is an opportunity to redefine how we feed the world.