在计算学习的背景下，“可能近似正确”（PAC）学习的概念为理解学习算法的效率和可行性提供了一个框架。
In the context of computational learning, the concept of 'probably approximately correct' (PAC) learning provides a framework for understanding the efficiency and feasibility of learning algorithms.
我们写作不是因为我们想写，而是因为我们不得不写。
The purpose of literature is to turn blood into ink.
Quality is remembered long after price is forgotten.
如果所有的人都是富有的，那么所有的人都是贫穷的。
Sustainability is not just a goal, but a necessity for future business.
害怕被征服的人，注定要失败。