计算学习理论中的挑战在于理解学习算法的能力和局限性。
The challenge in computational learning theory is to understand the capabilities and limitations of learning algorithms.
【释义】回归到原本的质朴纯真状态，就可以终身不受辱。
地理学是研究地球作为人类家园的科学。
也许我们能期望的最好结果，就是带着正确的遗憾结束。
Education is what survives when what has been learned has been forgotten.
译文：如果眼中没有离别的怨恨，就不会相信人间会有因相思而愁白了头的事。