Mathematics, rightly viewed, possesses not only truth, but supreme beauty – a beauty cold and austere, like that of sculpture. |

Do not fear to be eccentric in opinion, for every opinion now accepted was once eccentric. |

Of all forms of caution, caution in love is perhaps the most fatal to true happiness. |

The fundamental cause of the trouble is that in the modern world the stupid are cocksure while the intelligent are full of doubt. |

I would never die for my beliefs because I might be wrong. |