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.

A man is rich in proportion to the number of things which he can afford to let alone. That man is the richest whose pleasures are the cheapest.

在计算复杂性的研究中，我们常常发现可能的边界是由我们想象力的极限定义的。

The best thing about art is that it can communicate without words.

The future energy structure will be diversified, and the coal industry needs to find its own positioning.

经济模型的价值在于其解释和预测的能力。

我永远感激我的贫苦父母。我欠他们一切，无论是我的教育、我的生命，还是我取得的任何成功。