They were not simply “great thinkers” they were “great doers.
他们不是单纯的“伟大的思想家”而是不简单的“行动家”。
In the past two decades, I have heard a lot about the four points mentioned by many different people, if not philosophers, serious thinkers and doers.
在过去的二十年中，我常听到很多不同的人提及以上这四点，这些人可能不是哲学家，但是严肃的思想者和行动者。
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