The most important thing is to be able to think, to be able to see, to be able to judge what you see.

"The only person you should try to be better than is the person you were yesterday."

"The thing about smart people is that they seem like crazy people to dumb people."

"The past is a shadow that follows us, but it is also the light that guides us forward."

If you want to make a difference, you have to be willing to take risks.

革命的道路不是铺满玫瑰的道路。