Quote Originally Posted by Rick
How are you able to infer from his book on relativity that Einstein displayed no preference for rationality/irrationality in his day-to-day activities?
Because he wrote it. He wouldn't write something that would conflict with his personality.

Don't look at it as rationality/irrationality. Look at it as judgement and perception. The book is littered with chastisements against premature judgement and false premises. "Ought we to smile at the man and explain he is mistaken? I think not if we are to remain consistent."