Science operates within a specific framework of methodology (observation of a phenomenon, making a hypothesis, performing experiment and analyses). The result of scientific inquiry are laws of nature and theories. Those are either refined or substituted by new theories when new data becomes available. Since there is no miracles, no major theories are thrown out altogether. For example Einstein's General Theory of Relativity only refined Newton's Laws.
Comparing science with rigid religious dogma is not a very strong argument, but it surely might sit well among religious. For those, no argument is needed, at all, since god is allowed to work in mysterious ways.
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