No matter how good you get you can always get better, and that's the exciting part.

Wherever you go, you take yourself with you.

The world is a great wheel, and we are the spokes.

赏析：指出知道满足的人不会被利益所累，真正安闲自得的人不会因为失去而恐惧，注重内心修养的人不会因为没有地位而惭愧。

当你最不抱期望时，研究的坚持往往会带来回报。