一本好书的标准在于它能在多大程度上扰乱和困扰读者。
 One foul sentence does more hurt than many foul examples. For these do but corrupt the stream;the other corrupt the fountain.
Causality is the fabric of the universe, and probability is its language.
"We are all agreed that your theory is crazy. The question which divides us is whether it is crazy enough to have a chance of being correct."