The greatest obstacle to being heroic is the doubt whether one may not be going to prove one's self a fool; the truest heroism is to resist the doubt; and the profoundest wisdom, to know when it ought to be resisted, and when it be obeyed.
成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜；真正的英雄主义是抵制这种怀疑；最深刻的智慧是知道何时应该抵制，何时应该服从。
创新不仅仅是技术的问题；它关乎改变思维方式并接受新的思考方式。
人生苦短，唯有快乐。
The goal of mathematics is to understand the universe in a deeper way.
A great novel is one that changes the reader, that leaves him different after the last page.