地球并非刚体，其对力的响应必须用适用于可变形介质的方法来处理。

All mankind... being all equal and independent, no one ought to harm another in his life, health, liberty, or possessions.

The only thing you absolutely have to know is the location of the library.

"I try to make my drawings as clear and simple as possible, so that the reader can understand the story without any confusion."

Most of us spend too much time on what is urgent and not enough time on what is important.

未来属于那些相信自己梦想之美的人。