Life can only be understood backwards；but it must be lived forwards.

"I’m not playing for the records. I play because I love the game."

The quest for understanding is the noblest pursuit of the human spirit.

Lock up your libraries if you like; but there is no gate, no lock, no bolt that you can set upon the freedom of my mind.

悲观者抱怨风向，乐观者期待风向改变，而领导者调整船帆。

The past is a place of reference, not a place of residence.

宇宙不允许完美。

心是一个孤独的猎人。