当我们本应更明智地保护自己免受其害时，纯真总是默默地呼唤保护：纯真就像一个失去了铃铛的哑巴麻风病人，漫游世界，无意伤害。
"Innocence always calls mutely for protection when we would be so much wiser to guard ourselves against it: innocence is like a dumb leper who has lost his bell, wandering the world, meaning no harm."
Not what we have, but what we enjoy, constitutes our abundance.
如果你只读大家都在读的书，你只能想到大家都在想的东西。
追求真理是人类最高尚的事业。
Sustainability is no longer an option; it's a necessity for survival.