Simple can be harder than complex: You have to work hard to get your thinking clean to make it simple.
生命中最伟大的荣耀不在于从不跌倒，而在于每次跌倒后都能爬起来。
The speech we hear is an indication of that which we don't hear. It is a necessary avoidance, a violent, sly, anguished or mocking smokescreen which keeps the other in its place.
The best way to predict the future is to create it.
The elegance of a mathematical proof is in its simplicity and clarity.
动物和人类的有目的行为。
The less I know about other people’s affairs, the happier I am.