"Every book has a soul. The soul of the person who wrote it and of those who read it and dream about it."

数学的美在于它能够简化复杂的现象。

The center of our galaxy is a fascinating place where extreme physics takes place, and it's a privilege to study it.

Decide upon your major definite purpose in life and then organize all your activities around it.

You don’t have to be perfect. Just be yourself.

诚信是任何持久企业的基础。