历史不会长期将自由的维护托付给软弱或胆怯的人。
History does not long entrust the care of freedom to the weak or the timid.
Mathematics is the science of patterns, and nature exploits every possible pattern.
I don't believe in inspiration. I believe in work.
如果你不相信爱,那么生活的意义是什么?
The aim of education is not to make men carpenters, but to make carpenters men.
创新是解决世界最紧迫问题的关键。