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The future belongs to those who prepare today.
Twenty years of romance make a woman look like a ruin; but twenty years of marriage make her look like a public building.
"We are all the sum of our contradictions - that's what makes biography so fascinating."
唯一真正的旅行不是去新的风景,而是拥有新的眼光。
PAC学习框架提供了一种形式化的方法来量化概念类的可学习性。