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,当以恒心为良友、以经验为参谋、以谨慎为兄弟、以希望为哨兵。 (美国发明家 爱迪生. T.)
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