最重要的是享受生活——快乐——这才是最重要的。
The most important thing is to enjoy your life—to be happy—it's all that matters.
The natural effort of every individual to better his own condition， when suffered to exert itself with freedom and security， is so powerful a principle that it is alone， and without any assistance， not only capable of carrying on the society to wealth and prosperity but of surmounting a hundred impertinent obstructions with which the folly of human laws too often encumbers its operations.
数学发现的过程不是关于到达目的地，而是关于旅程本身。
Leadership is about making tough decisions, not just popular ones.
I'm not going to compare myself to anybody. I'm going to do the best I can do. I'm going to work hard every day to be the best that I can be.
In such condition there is no place for industry...and which is worst of all， continual fear and danger of violent death.