永远不要停止提问——进步就从那里开始。
Never stop questioning—that’s where progress begins.
用礼义来教化人心，就不会有邪恶的思想出现；用教育来治理百姓，就不会有祸乱发生，刑罚不是首要手段！这教化的智慧，太伟大了！并且通过教育和礼仪来引导人们，远比强制措施更为有效！
最高深的道理往往是最简单的，但演化出的变化却极其复杂。
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.
Collaboration is the foundation of great achievements.
Never let your sense of morals prevent you from doing what is right.