你越努力，就越难放弃。

数学是理性的音乐。

The most important thing is to be true to yourself.

【释义】：在爱一个人时，也要看清对方的缺点；在憎恨一个人时，也要看到对方的优点。

Confidence isn't optimism or pessimism, and it's not a character attribute. It's the expectation of a positive outcome.

I’m living the life I dreamed about when I was broke.