I Learned Very Early The Difference Between

Ordinarily It Would Take Me About Fifteen Minutes To Get A Hallucination Going," Wrote Feynman, "but On A Few Occasions, When I Smoked Some Marijuana Beforehand, It Came Very Quickly.

Any Schemes - Such As 'think Of Symmetry Laws', Or 'put The Information In Mathematical Form', Or 'guess Equations'- Are Known To Everybody Now, And They Are All Tried All The Time. When You Are Stuck, The Answer Cannot Be One Of These, Because You Will Have Tried These Right Away...the Next Scheme, The New Discovery, Is Going To Be Made In A Completely Different Way.

There Is One Simplification At Least. Electrons Behave ... In Exactly The Same Way As Photons; They Are Both Screwy, But In Exactly In The Same Way.

While I Am Describing To You How Nature Works, You Won't Understand Why Nature Works That Way. But You See, Nobody Understands That.

A Very Great Deal More Truth Can Become Known Than Can Be Proven.