种树的最佳时间是25年前，第二好的时间是今天。

We are all of us made by what we have lost as much as by what we have gained.

Art doesn’t have to be serious to be meaningful.

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.

做出伟大工作的唯一方法是热爱你所做的事情。