我是一个形式主义者。

To teach how to live without certainty and yet without being paralyzed by hesitation is perhaps the chief thing that philosophy， in our age， can do for those who study it.

理论的任务不仅是了解自然是什么以及它是如何运作的，而且要尽可能接近理解为什么自然是这样的而不是其他样子的不可达到的目标。

I am not the most handsome person, but I am the most charming person.

If you tremble with indignation at every injustice, then you are a comrade of mine.

You have to fight to reach your dream. You have to sacrifice and work hard for it.