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The great secret that all old people share is that you really haven't changed in seventy or eighty years. Your body changes, but you don't change at all. And that, of course, causes great confusion.

I'm a great believer in luck, and I find the harder I work the more I have of it.

成功不是終點，失敗不是致命的：重要的是繼續前進的勇氣。

未來最成功的社會將是那些能夠將市場的效率和技術活力與國家提供的社會安全網和政治穩定結合起來的社會。