The only sensible ends of literature are, first, the pleasurable toil of writing; second, the gratification of one's family and friends; and lastly, the solid cash.

释义：善于游泳的人容易被淹死，善于骑马的人常常落马而摔伤，他们各因自己的爱好特长而招致灾祸。比喻有专门本领的人往往因自恃而招致灾祸。

数学的本质在于它的自由。

The Great Man is a man who lives a long way off.