I'm as proud of many of the things we haven't done as the things we have done.Innovation is saying no to a thousand things.
Behavior is determined by the interaction of drive and habit strength.
Money is like manure, its only good if you spread it around.
It has always been easy to hate and destroy. To build and to cherish is much more difficult.
每个数学问题都有一个解决方案;你只需要找到正确的视角。