We don't inherit forests from our ancestors, we borrow them from our children.
"Books are the bridges that connect us to the future."
世界是一个伟大的时钟，我们是其中的指针。
The beauty of mathematics lies in its ability to describe the world in a language that is universal.
Hard work, under the old system, meant long hours, little rest, and poor pay. Under the new system, it means a fair day's work for a fair day's pay.
我们无法改变我们没有意识到的事情，而一旦我们意识到，我们就不能不改变。