The thing about life is that it's never the way you think it's going to be.
生活的美妙之处在于它永远不会如你所想的那样发展。
定理是永恒的；它们的证明是短暂的。
The person who tries to live alone will not succeed as a human being. His heart withers if it does not answer another heart. His mind shrinks away if he hears only the echoes of his own thoughts and finds no other inspiration.
If we want to protect forests, we must first understand them.