"Great art always carries within it great pain."

"The truth is often ugly, but it must be told."

He who knows only his own side of the case knows little of that.

Science is a journey of continuous learning and adaptation.

"The past is not dead ground, and to traverse it is not a sterile exercise."

The terror of art is that you don't know where it will take you.

明白事理的人使自己适应世界；不明事理的人想使世界适应自己。所以，所有进步都要靠不明事理的人。

我们拥有的最伟大工具是我们心灵的力量。