The PAC learning framework provides a formal way to analyze the efficiency and effectiveness of learning algorithms.
"The only way to deal with an unfree world is to become so absolutely free that your very existence is an act of rebellion."
人生即使有百年之期，但夭折、长寿、困厄或通达都无法预先知道。
当实验证明最吸引人的想法是错误时，你必须准备好放弃它们。