The challenge of leadership is to be strong, but not rude; be kind, but not weak; be bold, but not bully; be thoughtful, but not lazy; be humble, but not timid; be proud, but not arrogant; have humor, but without folly.

The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

The only way to discover the limits of the possible is to go beyond them into the impossible.

一个人不应该发愁没有官位俸禄，而应该发愁没有为官的本领。不应该发愁别人不了解自己，而应追求能够让别人了解自己的才能。