不要把名字写在沙滩上，海浪会冲走它。不要把名字写在天空中，风可能会吹走它。把你的名字写在人们心里，那里才是它永存的地方。

"You can never be overdressed or overeducated."

Always question your assumptions—that's where the most interesting discoveries often lie.

If you borrow something， try to return it in better shape than you received it. Clean it， sharpen it， fill it up.

走出痛苦迷宫的唯

知识只有在它有助于人类解放时才有价值。