The ideas of economists and political philosophers， both when they are right and when they are wrong， are more powerful than is commonly understood. Indeed the world is ruled by little else. Practical men， who believe themselves to be quite exempt from any intellectual influence， are usually the slaves of some defunct economist.

The brain caps off its second and last growth spurt in your 20s as it rewires itself for adulthood.

明智的艺术就是知道要忽略什么。

The truth is rarely pure and never simple.

我宁愿因为做自己而被讨厌，也不愿因为伪装而被喜爱。