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.

What happened in the milliseconds before a behavior to cause it? That's in the neurobiological realm.

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

Until you appreciate something crucial - It is incredibly easy to manipulate us as to who counts as an Us, who as a Them.

I had never planned to become a savanna baboon when I grew up; instead, I had always assumed I would become a mountain gorilla.

Finish this lecture, go outside, and unexpectedly get gored by an elephant, and you are going to secrete glucocorticoids. There's no way out of it. You cannot psychologically reframe your experience and decide you did not like the shirt, here's an excuse to throw it out - that sort of thing.

Depression is not generalized pessimism, but pessimism specific to the effects of one's own skilled action.