A statement intended as a formulation of a law of nature is certainly man-made. We make the hypothesis that there is a certain invariable regularity, i.e. we describe the supposed regularity with the help of a statement, the natural law. But, as scientists, we are prepared to learn from nature that we have been wrong; we are prepared to recast the law if fresh facts which contradict our hypothesis show that our supposed law was no law, since it has been broken. In other words, by accepting nature’s nullification, the scientist shows that he accepts a hypothesis only as long as it has not been
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