Everything Is Made Of Atoms.

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.

Therefore Psychologically We Must Keep All The Theories In Our Heads, And Every Theoretical Physicist Who Is Any Good Knows Six Or Seven Different Theoretical Representations For Exactly The Same Physics.

I Love Only Nature, And I Hate Mathematicians.

Philosophy Of Science Is About As Useful To Scientists As Ornithology Is To Birds.

If A Guy Tells Me The Probability Of Failure Is 1 In 100,000, I Know He's Full Of Crap.