Leadership is about making the tough decisions when no one else will.
领导力就是在无人愿意时做出艰难决定。
骄傲的核心特征是敌意——对上帝的敌意和对同胞的敌意。
幸福生活的关键不在于避免问题,而在于学会如何有效地处理它们。
The unity of mathematics is not imposed but discovered.