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旅行就是生活。
每个行为都有它的乐趣和它的代价。
剑鞘保护剑的锋利,自己却满足於它自己的迟钝。
To understand the arithmetic of algebraic varieties is to understand the symmetries hidden within them.
The worth of a state, in the long run, is the worth of the individuals composing it.