说话有分寸则少得罪人；行为有节制则少悔恨；爱慕有节制则要求少；快乐有节制则祸败少；饮食有节制则疾病少。
The study of computational complexity is not just about solving problems, but also about understanding the limits of what can be computed.
每一场比赛都是学习新东西的机会。