Philosophy
- Possible world, a construct in metaphysics to bring rigor to talk of logical possibility
- Modal realism, an account of possible worlds according to which they are all just as real as the actual world
Read more about this topic: Parallel Universe
Famous quotes containing the word philosophy:
“A philosophy can and must be worked out with the greatest rigour and discipline in the details, but can ultimately be founded on nothing but faith: and this is the reason, I suspect, why the novelties in philosophy are only in elaboration, and never in fundamentals.”
—T.S. (Thomas Stearns)