The only limit to our realization of tomorrow is our doubts of today.

你妈妈那么抑郁是因为我。

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.

The past is a source of knowledge, and the future is a source of hope. Love of the past implies faith in the future.

最好的决策是数据与直觉的结合。