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Mathematics is the key to understanding the universe.

The art of leadership is saying no, not yes. It is very easy to say yes.

One tells as few lies as possible only by telling as few lies as possible, and not by having the least possible opportunity to do so.

江河的水之所以浩浩蕩蕩，并非只由一個源頭流出來；無比珍貴的皮衣，并非只由一只狐貍腋下的毛皮所能制成。