PAC学习框架提供了一种正式的方法来分析学习算法的效率和有效性。

Every book is a quotation; and every house is a quotation out of all forests, and mines, and stone quarries; and every man is a quotation from all his ancestors.

最成功的人是那些愿意做不太成功的人不愿意做的事情。

Every challenge is an opportunity to learn and grow.

男性和女性在繁殖策略上有所不同，因为他们在整个进化历史中面临着不同的适应性问题。