CHAPTER IX THE WORLD OF UNIVERSALS AT the end of the preceding chapter we saw that such entities as relations appear to have a being which is in some way different from that of physical objects, and also different from that of minds and from that of sense-data. In the present chapter we have to consider what is the nature of this kind of being, and also what objects there are that have this kind of being. We will begin with the latter question. The problem with which we are now concerned is a very old one, since it was brought into philosophy by Plato. Plato's 'theory of ideas' is an attempt to solve this very problem, and in my opinion it is one of the most successful attempts hitherto made. The theory to be advocated in what follows is largely Plato's, with merely such modifications as time has shown to be necessary. The way the problem arose for Plato was more or less as follows. Let us consider, say, such a notion as jus...
The Century Magazine, July 1929, Vol. 118, No. 3, Pgs. 311-315 The Twilight Of Science Is The Universe Running Down Bertrand Russell It is a curious fact that just when the man in the street has begun to believe thoroughly in science, the man in the laboratory has begun to lose his faith. When I was young, no physicist entertained the slightest doubt that the laws of physics give us real information about the motions of bodies, and that the physical world does really consist of the sort of entities that appear in the physicist's equations. The philosophers, it is true, throw doubt upon this view, and have done so ever since the time of Berkeley; but since their criticism never attached itself to any point in the detailed procedure of scienc... (From : Anarchy Archives.)