We must balance the need for energy security with the imperative of reducing emissions.

真相常常隐藏在文字之间的空间里。

A good mathematician is someone who can see analogies between theorems; a great mathematician is someone who can see analogies between analogies.

You must be the change you wish to see in the world.

Every book is a door to a new world, a new perspective, a new understanding of life and existence.