Mathematics is the science of patterns, and nature exploits every possible pattern.

The biggest risk is not taking any risk. In a world that's changing quickly, the only strategy that is guaranteed to fail is not taking risks.

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.

每种心理状态都有其存在的目的；要理解它，我们必须询问它在更广泛的行为系统中发挥什么功能。

There are no hard distinctions between what is real and what is unreal, nor between what is true and what is false.