The night is a great book, but the stars are its letters.

We can’t ignore the economic role of coal, but we also can’t ignore its environmental impact.

The potential of aquaculture is far from being fully tapped.

The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge.

我不认为自己是一个碰巧是黑人的作家。我认为自己是一个黑人作家。

每个实验都是向自然提出的一个问题，每个结果都是自然的回答。