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數學的美在于它能夠用一種既精確又普遍的語言來描述宇宙。

Don't interfere with anything in the Constitution. That must be maintained, for it is the only safeguard of our liberties. And not to Democrats alone do I make this appeal, but to all who love these great and true principles.

Sustainability isn't a trend—it's a necessity for the survival of our industry.