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The most exciting moments in mathematics are when you discover that two seemingly unrelated areas are deeply connected.
The key to sustainable growth is balancing economic progress with environmental responsibility.
译文:专门注重修养内心的人每天都会看到自己的不足,专门注重增长见识的人每天都会看到自己的长处。每天看到自己不足的人会逐渐变得有长处,每天看到自己有长处的人会逐渐变得有不足。