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The first fruit of this imagination—and the first lesson of the social science that embodies it—is the idea that the individual can understand his own experience and gauge his own fate only by locating himself within his period, that he can know his own chances in life only by becoming aware of those of all individuals in his circumstances.

個體總是不得不努力，以免被部落淹沒。

歷史不是過去——它是我們組織對過去無知的方法。

能源的未來在于我們持續適應和創新的能力。

Better to hunt in fields, for health unbought, than fee the doctor for a nauseous draught.

遇到壞事不必愁，只要有方法補救；好事來臨也不必歡喜，要會承受。