对地球最大的威胁是认为别人会拯救它的想法。
"The greatest threat to the planet is the idea that someone else will save it."
每一本书都是通往另一个世界的门，每一个读者都是旅行者。
Remember, if you ever need a helping hand, it's at the end of your arm, as you get older, remember you have another hand: The first is to help yourself, the second is to help others.