美国学者福格特在他的一本著作中悲痛地写道：人类是依靠破坏其生存所必不可少的环境而生活的惟一有机体。寄生虫也有同一趋向,但是它们的破坏由于缺乏智力而受到限制。人类用其智力来破坏环境。从地理学或历史学来看,人类学会稳定或恢复环境的时候绝少,人类越是进步,对环境的破坏性可能越大。我们现在越来越清楚地看到了这个确凿不疑的事实。我亲自目睹了近几十年来人们是怎样肆无忌惮地毁坏自己的生存环境的。城市里的树木越来越少,被诗人们歌唱的鸟鸣声早已听不到了,偶尔看到几只灰色的麻雀一头扎进刚刚倾倒的垃圾堆里,它们已没有栖身之地。 The American scholar Vogt wrote sadly in one of his works: Human beings are the only organism that lives by relying on the environment that destroys their survival. Parasites also have the same tendency, but their destruction is limited by the lack of intelligence. Humans use their intelligence to destroy the environment. From the point of view of geography or history, there are few times when humans learn to stabilize or restore the environment. The more humans progress, the greater the destructiveness to the environment. We now see this unquestioned fact more and more clearly. I personally witnessed how people have unscrupulously destroyed their living environment in recent decades. There are fewer and fewer trees in the city, and the birdsong that the poet sings can’t be heard. Occasionally, several grey sparrows are seen heading into the newly dumped rubbish heap. They have no shelter.