"This is what fascinates Shaw: this enormous force that ignores our human preferences, our logic and intellect. It fascinates him because to be suddenly gripped by it is to see that human beings are not the accidental products of a mechanical universe — that they are not 'alone'. As social animals, we live in a narrow but apparently logical world with a well-defined identity and position. But man is the satellite of a double-star; there is also an inner-world that seems to have a completely different set of laws from the rational universe. And in fact, if we judge this 'rational universe' by its own laws, we see that it is not self-complete and self-explanatory; space must end somewhere, time must have a stop; but the alternative propositions sound equally 'logical': space is infinite; time has neither beginning nor end. The answer to these paradoxes must be that the outer universe is not self-complete; it is only half a universe. The inner world is the other half. But at present we know very little about this inner world. It is only within the present century that its existence has been clearly recognized by psychology."