如果战略达到了目标，它就是有用的；如果战略实现了目标，它就是成功的。

User experience outweighs commercial interests.

数学的本质在于它的自由。

Courtesy costs nothing. Lower the toilet seat after use. Let the people in the elevator exit before you enter. Return shopping carts to their designated areas. When you borrow something， return it better shape (filled up， cleaned) than when you got it.

领导力是关于做出今天艰难但有益于后代的决定。