科学中的创新往往来自于以新的方式看待老问题。

When you have nobody you can make a cup of tea for, when nobody needs you, that's when I think life is over.

数学的研究对科学的发展就像空气或水一样。

The heart of a mother is a deep abyss at the bottom of which you will always find forgiveness.

秘密的重量比石头更重。