Time is the only critic without ambition.

强大但是骄傲就会削弱力量，弱小而骄傲只会加速灭亡。

There's a real correlation between a society that tells people that they can do anything, and the existence of low self-esteem. So that's another way in which something quite positive can have a nasty kickback. There is another reason why we might be feeling more anxious --about our careers, about our status in the world today, than ever before. And it's, again, linked to something nice. And that nice thing is called meritocracy.

自然选择是残酷的。

"Every word is a choice, and every choice carries a consequence."

The unexamined life is not worth living.