Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
数学不是关于数字、方程、计算或算法的：它是关于理解的。
Sustainability isn't a choice; it's our responsibility to the next generation.
The state is the people organized for law.
"I'm interested in the darkness. If you don't go into the darkness, you're never going to see the light."
如果你认为一个人的本质是好的，就要随时为这个人提供帮助，即使其他人都离他而去。任何人都可能陷入困境。在别人需要的时候，一个偶然的善意行为就会改变他的生命轨迹，造就意想不到的友谊或忠诚。
生命太短暂，不要浪费时间恨任何人。
【译文】一辈子不做不应该做的事，世界上就不会有痛恨自己的人了。
Everyone has a secret world inside of them. All of the people of the world, I mean. Everybody. No matter how dull and boring they are on the outside, inside them they've all got unimaginable, magnificent, wonderful, stupid, amazing worlds. Not just one world. Hundreds of them.
可持续性不是选择，而是必然。
Don’t let success go to your head or failure go to your heart.