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

追求数学真理是一项既个人又普遍的努力。

"Painting is about seeing. Really seeing."

【译文】爱好学习的人如同禾苗稻谷一样都是有用的，不爱学习的人则像蒿草一样没有什么用处，只配当柴火来烧。