數(shù)學(xué)的美在于它是永恒的，它不會改變。
The only way to do great work is to love what you do.
The heart of another is a dark forest, always, no matter how close it has been to one’s own.
如果你沒有失敗，說明你不夠努力。
Power is not a toy we give to children. It is a weapon we place in the hands of soldiers.