How sharper than a serpent's tooth is to have a thankless child.

"The best way to get things done is to simply begin."

These walls are really interesting. At first you hate it, then you get used to it. After a considerable period of time, you will depend on it.

Art is not about boundaries; it’s about freedom.

The study of mathematics is like air or water to the development of science.

宁愿因为有所作为而被世人知晓而死，也不愿默默无闻地活着