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

无法自爱就无法爱人，憎恨自己就一定会憎恨他人。

我不想比别人强，我只想比昨天的自己更好。

The price of doing the same old thing is far higher than the price of change.

数学是上帝用来书写宇宙的语言。