"Science is always humble. It never lays claim to the final word. It is religion that asserts, ‘I have understood it all, I have figured the universe out, now do as I say.’ Science believes in testing objects and incidents, and searching tirelessly for solutions to unsolved problems. Scientists are not to be praised for being right; they are to be praised for trying to state principles rigorously and thoroughly. Science remains objective even while it extends or overturns the work of its own giants."