No man, for any considerable period, can wear one face to himself and another to the multitude, without finally getting bewildered as to which may be the true.

宇宙中无物浪费，无物贫瘠，无物死亡；无混沌，无混乱，除非表象如此。

To do mathematics is to engage in an act of discovery and conjecture, intuition and inspiration.

"We are all in the gutter, but some of us are looking at the stars."