在数学中，提出问题的艺术必须比解决问题更有价值。

If you are looking for something in your house， and you finally find it， when you’re done with it， don’t put it back where you found it. Put it back where you first looked for it.

Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.

每部电影都是一次旅程，每次旅程都有其挑战。

【释义】贫穷之人因生活简朴，少欲知足，反而往往长寿；富人奢靡，有余之处过度挥霍，导致折损寿命。这是天道自然调节，有余者削减，不足者得到补益。