证明是一种用于使他人相信数学陈述为真的工具。
A proof is a device for convincing someone else that a mathematical statement is true.
The only fence against the world is a thorough knowledge of it.
Just you wait. You really will go to hell.Don't be ridiculous. How can you go to hell if you're already there?
爵士乐教会我自由,但生活教会我灵魂。
The true test of a mathematical idea is its ability to inspire further thought.
可持续性不是成本,而是对我们共同未来的投资。