Lecture II
Let us imagine the way in which one forms general concepts; the way in which one synthesizes a mass of details. We can do this in two ways: first as a man does in the course of his life through the world. He sees numerous examples of a certain kind of animal: they are silky or woolly, are of various colours, have whiskers, at certain times they go through movements that recall human “washing”, they eat mice, etc. One can call such creatures “cats”. Then one has formed a general concept. All these creatures have something to do with what we call “cats”. But now let us suppose that someone has had a long life, in the course of which he has encountered many cat-owners, men and women, and he has noticed that a great many of these people call their pets “Pussy”. Hence he classes all these creatures under the name of “Pussy”. Hence we now have the general concept “Cats” and the general concept “Pussy”, and a large number of individual creatures belonging in both cases to the general concept. And yet no one will maintain that the general concept “Pussy” has the same significance as the general concept “Cats”. Here the real difference comes out. In forming the general concept “Pussy” which is only a summary of names that must rank as individual names, we have taken the line, and rightly so, of Nominalism; and in forming the general concept “Cats” we have taken the line of Realism, and rightly so. In one case Nominalism is correct; in the other. Realism. Both are right. One must only apply these methods within their proper limits. And when both are right, it is not surprising that good reasons for both can be adduced. In taking the name “Pussy”, I have employed a somewhat grotesque example. But I can show you a much more significant example and I will do so at once.