“Einstein was once asked how many feet are in a mile. Einstein's reply was "I don't know, why should I fill my brain with facts I can find in two minutes in any standard reference book?”

“When the poet Paul Valery once asked Albert Einstein if he kept a notebook to record his ideas, Einstein looked at him with mild but genuine surprise. "Oh, that's not necessary," he replied . "It's so seldom I have one.”

“In reference to Einstein's definition of insanity...No Mr. Einstein, that is not insanity, that is autism.”

“When Albert Einstein was asked what he would really like to know about the Universe he replied,'is it friendly?”

“Einstein's Monsters," by the way, refers to nuclear weapons, but also to ourselves. We are Einstein's monsters, not fully human, not for now.”

“If a blind man were to ask me “Have you got two hands?” I should not make sure by looking. If I were to have any doubt of it, then I don’t know why I should trust my eyes. For why shouldn’t I test my eyes by looking to find out whether I see my two hands? What is to be tested by what?”