物理学家必须拥有生动的直觉想象力，因为新思想不是通过演绎产生的，而是通过艺术性的创造性想象。

Coal has been the backbone of industrial progress, but its future must balance economic needs with environmental responsibility.

I do not know what I may appear to the world， but to myself I seem to have been only like a boy playing on the sea-shore， and diverting myself in now and then finding a smoother pebble or a prettier shell than ordinary， whilst the great ocean of truth lay all undiscovered before me.

城市是一个活生生的东西，总是在变化，又总是一样。

In mathematics, there are no shortcuts.

The novel is the book of life. In this sense, the Bible is a great confused novel. You may say, it is about God. But it is really about man alive.