结构应该生长，而不是被强加。

Let us try to teach generosity and altruism, because we are born selfish.

You can't be that kid standing at the top of the waterslide, overthinking it. You have to go down the chute.

The individual has always had to struggle to keep from being overwhelmed by the tribe.

除非将某人的行动置于其整个生活背景中看待，否则无法完全理解其行动。