愤怒的时候我会去打球，把怒气发泄在球上。

The essence of mathematics lies in its freedom.

"A personality is a full Congress of orators and pressure-groups, of children, demagogues, communists, isolationists, war-mongers, mugwumps, grafters, prayer-meetings, spiritualists, and astrologers."

Every day is a new opportunity to change your life.

有两种东西是无限的，宇宙和人类的愚蠢。

On the way to a grand goal， celebrate the smallest victories as if each one were the final goal. No matter where it ends you are victorious.

如果你想快乐，那就快乐吧。