If you don’t make mistakes, you’re not working on hard enough problems.
如果你不犯错，说明你解决的问题还不够难。
The greatest lessons come from the hardest struggles.
To be Irish is to know that in the end the world will break your heart.
你越努力，就越幸运。
去做高尚的事情，不要整天只是做梦。
The most important thing is to enjoy your life—to be happy—it's all that matters.
在数学中，就像在生活中一样，最优雅的解决方案往往来自于对问题的深刻理解。