领导力意味着今天做出艰难的决策，以便明天让所有人受益。

The past is always tense, the future perfect.

协助儿童，能使你们之间建立起更亲密的关系。这胜过一般的感情，因为你不仅给他安慰，更给予了他们实际的帮助。

The true measure of success is how much you contribute to the progress of society.

The present is the past rolled up for action, and the past is the present unrolled for understanding.

Lisp is worth learning for the profound enlightenment experience you will have when you finally get it; that experience will make you a better programmer for the rest of your days, even if you never actually use Lisp itself a lot.

Life is like a cup of tea, it won't be bitter forever, but it will be bitter for a while.

It is better by noble boldness to run the risk of being subject to half of the evils we anticipate than to remain in cowardly listlessness for fear of what might happen.

所有严肃的艺术都试图理解这个世界。