The end of history will be a very sad time. The struggle for recognition, the willingness to risk one's life for a purely abstract goal, the worldwide ideological struggle that called forth daring, courage, imagination, and idealism, will be replaced by economic calculation, the endless solving of technical problems, environmental concerns, and the satisfaction of sophisticated consumer demands.

Happiness is a choice, not a result.

知道你拥有什么，并知道你为什么拥有它。

Courage to fail is just as important as the will to succeed.

The only way to have a friend is to be one.