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:
“At the very moment when someone is beginning to take philosophy seriously, the whole world believes the opposite.”
—Friedrich Nietzsche (1844–1900)
“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)