A new idea comes suddenly and in a rather intuitive way. But intuition is nothing but the outcome of earlier intellectual experience.

Albert Einstein

albert einstein 808x1024 - Albert Einstein
14 Mar 1951, Princeton, New Jersey, USA — Albert Einstein sticks out his tongue when asked by photographers to smile on the occasion of his 72nd birthday on March 14, 1951. — Image by © Bettmann/CORBIS