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