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.

幸福不是没有痛苦，而是有能力克服它。

未来属于那些能够自信地拥抱不确定性的人。

The mind can be considered as a physical symbol system.

The only limit is the one you set yourself.

我没有遵循大学课程中传统的常规路径，而是为自己开辟了一条新路。