Stupid is as stupid does.

出自北齐·颜之推《颜氏家训·勉学》。积累财富千万，也胜不过多读些书有用。古代有“书中自有黄金屋，书中自有颜如玉”的说法，读好书就能财源滚滚、美女满室。这句话意在强调读书以立世的重要意义。

The novel is the great art form of the human condition.

爱不是占有，而是欣赏。

艺术是让我们认识真相的谎言。

International politics is a ruthless and dangerous business, and it is foolish to expect states to behave according to moral principles.

我练体操是因为我喜欢它，而不是因为我想成为世界上最好的。

I don’t need a reason to be alive.

The true challenge in mathematics is not solving problems, but asking the right questions.