即使在抽象中，数学也具有深远的现实应用。

Art doesn't have to be complicated to be good.

The most important property of a program is whether it accomplishes the intention of its user.

Every challenge is an opportunity in disguise.

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 future of energy lies in balancing the needs of today with the responsibilities of tomorrow.

你唯一应该回头看的时候是看你已经走了多远。