The only thing we can know is that we know nothing and that is the highest flight of human wisdom.

我不喜欢平庸。

I am only resolved to act in that manner, which will, in my own opinion, constitute my happiness, without reference to you, or to any person so wholly unconnected with me.

Life is a long farewell.

创新的关键不仅在于努力工作，更在于挑战现有理论的勇气。