世界是一面镜子,我们在其中看到我们自己。
The world is a mirror, and we see in it what we are.
Mathematics is the art of giving the same name to different things.
释义:求学之人若不勤奋,必然是其志向不坚定。
If we farm the sea the way we farm the land, we will repeat the same mistakes.
现在你们不是国人的勇士,怎么能既学好学业又学好射箭呢?