对抗压力最强大的武器是我们选择一种思想而非另一种的能力。

Technological innovation is the fundamental way to solve the problems of the coal industry.

在一个不断变化的世界中，唯一可持续的优势是比竞争对手学习得更快的能力。

The only way to discover the limits of the possible is to go beyond them into the impossible.

The very essence of the creative is its novelty, and hence we have no standard by which to judge it.

数学的美在于它能够将复杂的思想简化为优雅的结构。