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1·Seventh--If you ever enter business for yourself, never indorse for others.

第七，如果你曾经只是为自己进入商界，永远不要赞同别人的观点。

2·Seventh — If you ever enter business for yourself, never indorse for others.

第七，如果你曾经只是为自己进入商界，永远不要帮助别人。

3·It is precluded from denying to a holder in due course the existence of the payee and his then capacity to indorse.

不得向适时执票人否认收款人之存在及其背书之权力。