制革厂的废物流比任何使命宣言都更清晰地讲述其道德故事。
A tannery's waste stream tells the story of its ethics more clearly than any mission statement.
I have not told the half of what I saw.
环境对不同观察者会显得不同，这取决于他们准备看到什么。
The truth is rarely pure and never simple.
"Books are the quietest and most constant of friends; they are the most accessible and wisest of counselors, and the most patient of teachers."
你无法阻止未来，你无法倒回过去，学习秘密的唯一方法……就是按下播放键。