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气候变化是全球森林面临的最大威胁,但也是我们创新的最大机会。
我们成功的真正标准是在保护资源的同时如何更好地养活世界。
The most incomprehensible thing about the world is that it is at all comprehensible.
Pleasure is the greatest good, and we should seek it and avoid pain.
The psychologist must avoid all metaphysical assumptions.