"When you are writing, you are trying to find out something which you don't know."

对于那些有为而生的人来说，没有什么是无足轻重的。

数学的美只向更有耐心的追随者展示。

Learning consists in the modification of certain mediating processes which operate between the stimulus and the response.

A writer is someone who can make a riddle out of an answer.