1 "Imagination is more important than knowledge." 2 "Gravitation is not responsible for people falling in love." 3 "I want to know God's thoughts; the rest are details." 4 "The hardest thing in the world to understand is the income tax." 5 "Reality is merely an illusion, albeit a very persistent one." 6 "Weakness of attitude becomes weakness of character."
"You may believe that you are responsible for what you do, but not for what you think. The truth is that you are responsible for what you think, because it is only at this level that you can exercise choice. What you do comes from what you think."