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The secret of theory is that truth does not exist.

Innovation is the key to sustainable agriculture.

I’m a great believer in solving hard problems by using a checklist. You need to get all the likely and unlikely answers before you; otherwise it’s easy to miss something important.

譯文：如果一個人富貴了，就會有人接近巴結他；如果一個人變得貧賤了，原來與他親近的人就會離開他。

最有力的故事是那些拒絕被遺忘的故事。