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倉庫里空虛了日子就會難，子孫愚笨了怎么知曉禮義呢？

Success is not the key to happiness. Happiness is the key to success. If you love what you are doing, you will be successful.

The chief beauty about time is that you cannot waste it in advance. The next year, the next day, the next hour are lying ready for you, as perfect, as unspoiled, as if you had never wasted or misapplied a single moment in all your life. You can turn over a new leaf every hour if you choose.

人聲是最危險的樂器。

我必須研究政治和戰爭，以便我的兒子們可以自由地研究數學和哲學。

跨行業合作是解決世界能源挑戰的關鍵。