there is a will , there is a way .( Thomas Edison , American inventor )有志者，事竟成。

28、If you wish to succeed , you should use persistence as your good friend , experience as your reference , prudence as your brother and hope as your sentry. (Thomas Edison , American inventor) 　　如果你希望成功，當以恒心為良友、以經(jīng)驗為參謀、以謹慎為兄弟、以希望為哨兵。

29、I want to bring out the secrets of nature and apply them for the happiness of man . I dont 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，用來造福人類。我認為，在我們的短暫一生中，最好