Quality is never an accident; it is always the result of intelligent effort.
金钱不是激励因素...我的动力来自踢我热爱的比赛。
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
有人居住的世界的界限是由人类知识的范围决定的。
Education is the foundation of conservation—people protect what they understand.
Train people well enough so they can leave, treat them well enough so they don't want to.