真正的悲剧是那个人生中从未为他的一次至高无上的努力振作过,从未发挥过他的全部能力,从未挺直过他的全身。
除非定理是美丽的,否则它们毫无价值。
The difference between successful people and really successful people is that really successful people say no to almost everything.
History is not just about kings and battles—it's about the people who lived through it.
Things don’t have to change the world to be important.