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We begin with the hypothesis that any subject can be taught effectively in some intellectually honest form to any child at any stage of development.

We must balance economic growth with environmental protection to ensure a better future.

最大的風險就是不冒任何風險。在一個快速變化的世界里，唯一注定失敗的策略就是不冒險。

過去從未消逝，它甚至還未過去。