我们都是自己经历、记忆和所讲故事的拼凑物。

幸福取决于内心，而非外界。

And when you’re down in the hole， when that moment comes， it’s really okay to feel bad for a little while. Give yourself time to mourn what you think you may have lost but then here’s the key， learn from every mistake because every experience， encounter， and particularly your mistakes are there to teach you and force you into being more who you are. And then figure out what is the next right move.

A good mathematician is one who can see analogies between theorems; a great mathematician is one who can see analogies between analogies.

Writing down one thing you are grateful for each day is the cheapest possible therapy ever.