Home » Theory Theory 1 If the experiments which I urge be defective, it cannot be difficult to show the defects; but if valid, then by proving the theory, they must render all objections invalid. Isaac Newton Difficult, Theory, Proving Add to Collection 2 Rational behavior requires theory. Reactive behavior requires only reflex action. W. Edwards Deming Action, Behavior, Theory Add to Collection 3 In theory there is no difference between theory and practice. In practice there is. Yogi Berra Practice, Difference, Theory Add to Collection
