QUOTE : But one element of this contention remains true; namely, that all scientific descriptions of facts are highly selective, that they always depend upon theories. The situation can be best described by comparison with a searchlight (the ‘searchlight theory of science’, as I usually call it in contradistinction to the ‘bucket theory of the mind’3). What the searchlight makes visible will depend upon its position, upon our way of directing it, and upon its intensity, colour, etc.; although it will, of course, also depend very largely upon the things illuminated by it. Similarly, a scientific description will depend, largely, upon our point of view, our interests, which are as a rule connected with the theory or hypothesis we wish to test; although it will also depend upon the facts described. Indeed, the theory or hypothesis could be described as the crystallization of a point of view. For if we attempt to formulate our point of view, then this formulation will, as a rule, be what one sometimes calls a working hypothesis; that is to say, a provisional assumption whose function is to help us to select, and to order, the facts. But we should be clear that there cannot be any theory or hypothesis which is not, in this sense, a working hypothesis, and does not remain one. For no theory is final, and every theory helps us to select and order facts. This selective character of all description makes it in a certain sense ‘relative’; but only in the sense that we would offer not this but another description, if our point of view were different. It may also affect our belief in the truth of the description; but it does not affect the question of the truth or falsity of the description; truth is not ‘relative’ in this sense4. The reason why all description is selective is, roughly speaking, the infinite wealth and variety of the possible aspects of the facts of our world. In order to describe this infinite wealth, we have at our disposal only a finite number of finite series of words. Thus we may describe as long as we like: our description will always be incomplete, a mere selection, and a small one at that, of the facts which present themselves for description. This shows that it is not only impossible to avoid a selective point of view, but also wholly undesirable to attempt to do so; for if we could do so, we should get not a more ‘objective’ description, but only a mere heap of entirely unconnected statements. But, of course, a point of view is inevitable; and the naïve attempt to avoid it can only lead to self-deception, and to the uncritical application of an unconscious point of view5. All this is true, most emphatically, in the case of historical description, with its ‘infinite subject matter’, as Schopenhauer6 calls it. Thus in history no less than in science, we cannot avoid a point of view; and the belief that we can must lead to self-deception and to lack of critical care. This does not mean, of course, that we are permitted to falsify anything, or to take matters of truth lightly. Any particular historical description of facts will be simply true or false, however difficult it may be to decide upon its truth or falsity. So far, the position of history is analogous to that of the natural sciences, for example, that of physics. But if we compare the part played by a ‘point of view’ in history with that played by a ‘point of view’ in physics, then we find a great difference. In physics, as we have seen, the ‘point of view’ is usually presented by a physical theory which can be tested by searching for new facts. In history, the matter is not quite so simple.