We don't inherit the land from our ancestors; we borrow it from our children.

实现明天的唯一限制将是我们今天的疑虑。

Keep cool, but care.

Knowledge is the source of power.

我爱上了你，我不会否认自己说出真相的简单快乐。

解释：砍伐树木不把树根砍掉，必能重新生长；堵塞水不把源头堵住，必会重新流出；消除祸患不铲除产生祸患的根基，祸患还会再生。

The beauty of language is that it can express the inexpressible.