释义：清风虽有意挽留却难以留住我，明月虽无心却自然地照耀着我。

A rich man's body is like a premium cotton pillow, white and soft and blank. A poor man's body is like a stone, hard and rough and full of edges.

The most important thing in mathematics is to ask the right questions.

A true mathematician is always a student, always learning.

领导力在于激励他人看到可能性。