地球的历史书写在其板块的运动中。

For in the final analysis, our most basic common link is that we all inhabit this small planet. We all breathe the same air. We all cherish our children's futures. And we are all mortal.

The most profound ideas in mathematics often arise from the simplest observations.

"The best stories are the ones that make you feel something."

诗歌是由文字组成的小机器。