一個人若希望保持優勢，那麼每十年就要改變一次策略。 One must change one's tactics every ten years if one wishes to maintain one's superiority.

一個人若希望保持優勢，那麼每十年就要改變一次策略。 One must change one's tactics every ten years if one wishes to maintain one's superiority.

法國政治家 拿破崙