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A proof tells us where to concentrate our doubts.
最可持续的皮革是使用寿命最长的皮革,减少了频繁更换的需求。
数学的统一性不是强加的,而是被发现的。
I think frugality drives innovation, just like other constraints do. One of the only ways to get out of a tight box is to invent your way out.