I tell you, we are here on Earth to fart around, and don't let anybody tell you different.

The most important thing in mathematics is to understand the concepts, not just to memorize the formulas.

做出伟大工作的唯一方法就是热爱你所做的事。

Education does not take root in the soul unless it goes deep.

The speed of innovation determines the height of development.

I went to the woods because I wished to live deliberately. I wanted to live deep and suck out all the marrow of life, to put to rout all that was not life.