Related:

• Reading is thinking with someone else's head instead of one's own.
• The hardest to plow are someone else's field and one's own wife. -- Milorad Pavic
• To be who one is, is not to be someone else.
• Read every day something no one else is reading. Think every day something no one else is thinking.
  It is bad for the mind to be always part of unanimity. -- Christopher Morley...
• Every man has one thing he can do better than anyone else - and usually it's reading his own handwriting.
  -- G. Norman Collie...
• Having a party in his head, but no one else is invited.
• A professor is one who talks in someone else's sleep.