The power of mathematics is in its universality and its ability to transcend cultural boundaries.
"The past is never dead. It's not even past."
Do not try to change the outer world; change your inner world, and the outer world will adjust itself.
If you're not failing occasionally, you're not pushing hard enough.
我们必须平衡短期需求和长期可持续性。
作为人类就是有缺陷的,但也意味着有能力进行巨大的改变。