It is not enough to know how to use tools; one must also understand when they are applicable.
仅仅知道如何使用工具是不够的；还必须了解它们何时适用。
痛苦是暂时的，放弃却是永远的。
The laws of physics are the same everywhere in the universe, and that is a profound truth that connects us all.
语言是灵魂的镜子；它反映了我们最深的思想和情感。
今天很残酷，明天更残酷，后天很美好。
I don’t believe in ‘finished’—art is always evolving.
姑娘自有神明为你照应，你心地纯洁，说话真诚。
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。