永远不要停止学习，因为世界永远不会停止变化。
知识的增长是解决问题的关键。
White is the most wonderful color because within it one can find all the colors of the rainbow.
"To be hopeful in bad times is not just foolishly romantic. It is based on the fact that human history is a history not only of cruelty, but also of compassion, sacrifice, courage, kindness."
现代采石要求我们同时成为地质学家、生态学家和社区外交官。
在气候变化问题上，大气层并不关心政治边界。
No arts; no letters; no society; and which is worst of all, continual fear, and danger of violent death; and the life of man, solitary, poor, nasty, brutish, and short.