The bigger the crowd, the more unnatural the picture.
Cheerfulness is the best promoter of health and is as friendly to the mind as to the body.
成为英雄的最大障碍是怀疑自己是否会证明自己是个傻瓜;真正的英雄主义是抵制这种怀疑;最深刻的智慧是知道何时应该抵制它,何时应该服从它。
数学的本质在于其自由性。
我只知道自己一无所知。
Leadership is about empowering others to achieve what they didn't think was possible.