The world needs your light, don’t dim it.

To write is to make a pact with silence.

To understand mathematics is to understand the fabric of reality.

Survival can be summed up in three words – never give up. That’s the heart of it really. Just keep trying.

In the end, we are all just trying to find our place in the universe.

教师必须为形成较好人类而献出一切。

You have to dream big and believe in yourself, because no one else will do it for you.

解释：最上等的是树立德行，其次是建立功业，再次是创立学说，虽然逝去但业绩长存，这就叫做不朽。

你的工作将占据你生活的大部分，唯一真正获得满足的方法是做你认为伟大的工作。