The only person you should try to be better than is the person you were yesterday.

A book is a dream that you hold in your hand.

数学之美在于它能够化繁为简。

我不相信做正确的决定。我做决定，然后让它们变得正确。

"Memory is a strange thing. It doesn't work like I thought it did. We are not meant to remember everything. We're meant to forget, to move on."