Every failed experiment teaches you something valuable—don’t fear mistakes.

The only real sin is regret.

"We are all in the gutter, but some of us are looking at the stars."

The art of teaching consists in large part of the ability to awaken the natural curiosity of young minds and to satisfy it with the nourishment of knowledge.

The text you write must prove to me that it desires me.

时间是我们学习的学校，时间是我们燃烧的火焰。