"A nation that destroys its soils destroys itself. Forests are the lungs of our land, purifying the air and giving fresh strength to our people."

The house should be a temple of the family.

用程序证明四色定理不会改变数学——它只是证明了这个挑战了一个世纪的定理是一个有限的问题。

我不喜欢被别人指挥。

To understand a forest, you must listen to it—not just with your ears, but with your respect.

 一个词的意义不是心智实体，而是社会实践。