The quarries we rehabilitate best become assets our grandchildren will thank us for.
数学的快乐来自创造的行为，而不仅仅是结果。
He tore my heart， but you broke my life.
领导力在于因为你的存在而使他人变得更好，并确保这种影响在你离开后依然存在。
Don't ever let anybody tell you they're better than you.
挽救失败的事，就好像驾驭悬崖边的马，不能轻拍一鞭。对于即将成功的事，就好像拉船上沙滩，不能少停一桨。