不要走别人走过的路，去走没人走过的路并留下足迹。

Happiness is beneficial for the body, but it is grief that develops the powers of the mind.

There are only two tragedies in life: one is not getting what one wants and the other is getting it.

追求幸福与追求快乐不同；幸福是灵魂的一种状态，而不仅仅是感觉。

Innovation in science often comes from looking at old problems in new ways.

"And this I believe: that the free, exploring mind of the individual human is the most valuable thing in the world. And this I would fight for: the freedom of the mind to take any direction it wishes, undirected."

绘画的行为是一种解放的行为。