The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

The ratio of positive to negative emotions that predicts flourishing is about 3 to 1. Above that ratio, people tend to flourish; below it, they tend to languish.

你必须相信自己的直觉，追随自己的激情。

The thing about smart people is that they seem like crazy people to dumb people.

如果不改善个人，就无法希望建立一个更美好的世界。