有时候最勇敢的事就是在一切似乎都失去时继续前进。
Sometimes the bravest thing is to keep going when everything seems lost.
Progress happens when we stop blaming and start solving.
发散级数是魔鬼的发明，基于它们的任何证明都是一种耻辱。
我不需要认可，我需要结果。
The past is not dead. It is not even past.
译文：学习、询问、思考、辨析、实践，都是做学问的方法，没有只学习而不实践的。
Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.
Greatness is a lot of small things done well, day after day.