3　 I want to bring out the secrets of nature and apply them for the happiness of man . I don"t know of any better service to offer for the short time we are in the world .(Thomas Edison , American inventor)
　　我想揭示大自然的秘密，用来造福人类。我认为，在我们的短暂一生中，最好的贡献莫过于此了。 (美国发明家 爱迪生. T.)

来源:可可英语 http://www.kekenet.com/read/201004/102567.shtml