I don't want to be a teacher. I want to be a friend.

对人说话要留有余地，不要一吐为快，不能把心全部交给别人。

We are all born with a certain package. We are who we are: where we were born, who we were born as, how we were raised. We're kind of stuck inside that person, and the purpose of civilization and growth is to be able to reach out and empathize a little bit with other people.

化学的艺术在于分离、提纯和结合物质的能力。

数学不仅仅是关于数字、方程、计算或算法：它是关于理解的。

Education is the most powerful weapon which you can use to change the world.