A philosopher once said, 'It is necessary for the very existence of science that the same conditions always produce the same results.' Well, they don't!
Richard P. FeynmanAlthough it is uncertain, it is necessary to make science useful. Science is only useful if it tells you about some experiment that has not been done; it is not good if it only tells you what just went on.
Richard P. FeynmanIt is necessary for the very existence of science that minds exist which do not allow that nature must satisfy some preconceived conditions.
Richard P. Feynman