We are all patchworks of our ancestors.

Mental activity is the organism's way of engaging with the world.

Make decisions when you are ready, not under pressure. Others will always push you to make a decision for their own purposes, internal politics, or some other external need. But you can almost always say, “I need a little more time to think about this. I’ll get back to you.” This tactic is very effective at defusing even the most difficult and uncomfortable situations.

No matter what happens in life, be good to people. Being good to people is a wonderful legacy to leave behind.

个人是唯一的现实。

哲学上的错误比数学上的错误要严重得多。

No matter how good you get you can always get better, and that's the exciting part.