It is clear that everybody interested in science must be interested in world 3 objects. A physical scientist, to start with, may b...e interested mainly in world 1 objects--say crystals and X-rays. But very soon he must realize how much depends on our interpretation of the facts, that is, on our theories, and so on world 3 objects. Similarly, a historian of science, or a philosopher interested in science must be largely a student of world 3 objects.LESSATTRIBUTION DETAIL »
It would be easy ... to regard the whole of world 3 as timeless, as Plato suggested of his world of Forms or Ideas.... I propose a... different view--one which, I have found, is surprisingly fruitful. I regard world 3 as being essentially the product of the human mind.... More precisely, I regard the world 3 of problems, theories, and critical arguments as one of the results of the evolution of human language, and as acting back on this evolution.LESSATTRIBUTION DETAIL »
If we call the world of "things"Mof physical objects--the first world, and the world of subjective experiences (such as thought pr...ocesses) the second world, we may call the world of statements in themselves the third world.LESSATTRIBUTION DETAIL »
In so far as a scientific statement speaks about reality, it must be falsifiable; and in so far as it is not falsifiable, it does ...not speak about reality.LESSATTRIBUTION DETAIL »