The fascinating thing about our best and worst behaviors isn't the behavior itself - the brain tells the muscles to do something or other - big deal. It's the meaning of the behavior.

Individual differences in testosterone level predict very little about differences in aggression.

I love science, and it pains me to think that so many are terrified of the subject or feel that choosing science means you cannot also choose compassion, or the arts, or be awed by nature. Science is not meant to cure us of mystery, but to reinvent and reinvigorate it.

Essentially, we humans live well enough and long enough, and are smart enough, to generate all sorts of stressful events purely in our heads.

Oxytocin is a Teflon hormone - bad news rolls off it.

We're getting along so well; I trust you so much for this one second that I'm going to let you yank on me.

The less it is possible that something can be, the more it must be.