"In computational learning theory, the challenge is not just to learn, but to understand how learning is possible."

The footsteps of Nature are to be traced, not only in her ordinary course, but when she deviates from it in her most extravagant excursions.

The best way to predict the future is to create it.

发现可能性的极限的唯一方法是超越它们进入不可能。

科学不仅仅是回答问题，更是发现新的问题。