这些建议都不是定律。它们更像是帽子。如果其中一顶不合适的话，就试试另一顶。

I cannot fix on the hour, or the spot, or the look, or the words, which laid the foundation. It is too long ago. I was in the middle before I knew that I had begun.

实现明天理想的唯一障碍是今天的疑虑。

The most exciting, challenging and significant relationship of all is the one you have with yourself.

Combinatorics is the art of counting without counting.