地球形状的问题本质上是势理论中的一个问题。

The body is a landscape of pain and beauty.

The universe is asymmetric and I am persuaded that life, as it is known to us, is a direct result of the asymmetry of the universe or of its indirect consequences.

I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating. Also, dogs are faithful and they do not tell lies because they cannot talk.

如果没有机械的帮助，一天的劳动不足以生产一磅棉花。