To be a diplomat is to be a professional liar, but the best diplomats are those who lie the least.

"The truth is a shadow, and the shadow is a game."

抽象的力量使数学能够超越物理现实的限制。

真正的勇气不是无所畏惧，而是面对恐惧依然前行。

别害怕重新开始。