Precision in experimentation is as important as creativity in hypothesis.

Hard to live or die hard.

In the long run, the greatest weapon of mass destruction is stupidity.

Mathematics is a conversation between the past and the future.

I'm not a person who looks back. I'm always looking forward.

To imagine is everything, to know is nothing at all.

The only way out is through.

The true revolutionary is guided by a great feeling of love. It is impossible to think of a genuine revolutionary lacking this quality.

出自汉·桓宽《盐铁论·相刺》。释义：碎玉满箱，算不得拥有财宝；读了几箱子的书，也不等于就掌握了其中的道理。