在计算学习理论中，我们试图理解从数据中学习的基本原理。
In computational learning theory, we seek to understand the fundamental principles that govern learning from data.
学习古人的文章，必须先理解其思想内涵，然后再学习其文辞表达。
The world needs more scientists who think like engineers, and more engineers who think like scientists.
The deepest wounds are often invisible to the naked eye.
These are the times that try men's souls.
盈利和环境保护可以而且必须齐头并进。