(a) "The vulgar belief that Science has "explained everything" is a hopeless misunderstanding. As we shall afterwards find, it would be nearer the truth to say that Science has explained nothing. (b) Science does not even try to refer facts of experience to any ultimate reality. That is not its business. (c) In a limited sense Science explains things, namely, by reducing them to simpler terms, by discovering the conditions of their occurrence, and by disclosing their history. What do we mean when we say that Physics has accounted for the tides or that Physiology has made some function of the body much more intelligible than it used to be? What is meant is that we have gained a general conception of the nature of the facts in question, and that we are able to relate them to some general formula. In this sense only does Science explain things, and it does not really get beyond a description."--Thomson, Introduction to Science.
-- Notebooks Category 7: The Intellect > Chapter 6: Science > # 40