Our heroes are human heroes. That's a very new situation. Most other societies have had, right at their center, the worship of something transcendent: a god, a spirit, a natural force, the universe, whatever it is -- something else that is being worshiped. We've slightly lost the habit of doing that, which is, I think, why we're particularly drawn to nature.

Sustainability isn't a cost center, it's an investment in our future.

What you don't do determines what you can do.

Quality is never an accident; it is always the result of intelligent effort.

数学的目标不是解决问题，而是理解问题。

坚持志向是功绩地位的根本；不懒惰是各种善事的老师。

The development of science cannot be separated from innovation and cooperation.

——曾问母亲，母亲说：“种种事情都完了！死完结了一切，文。”