Man is always something more than what he knows about himself. He is not what he is simply once and for all, but is a process.
The most sustainable forest is one that's valued by the community that depends on it.
If you think about something at three o'clock in the morning and then again at noon the next day, you get different answers...
宇宙不是一个需要解决的谜题,而是一个需要经历的神秘。
数学不仅仅是关于数字、方程、计算或算法:它是关于理解的。