We would often be sorry if our wishes were gratified.
(Aesop)

What if nothing exists and we're all in somebody's dream? Or what's worse, what if only that fat guy in the third row exists?
(Woody Allen)

Reality is that which, when you stop believing in it, doesn't go away.
(Philip K. Dick)

Reality is merely an illusion, albeit a very persistent one.
(Albert Einstein)
In the spider-web of facts, many a truth is strangled.
(Paul Eldridge)

I like nonsense -- it wakes up the brain cells. Fantasy is a necessary ingredient in living. It's a way of looking at life through the wrong end of a telescope...and that enables you to laugh at all of life's realities.
(Theodor S. Geisel, a.k.a. "Dr. Seuss")

You can close your eyes to reality, but not to memories.
(Stanislaw J. Lem)

Your goals, minus your doubts, equal your reality.
(Ralph Marston)

All that we see or seem is but a dream within a dream.
(Edgar Allan Poe)

Reality is nothing but a collective hunch.
(Lily Tomlin)

Truth is more of a stranger than fiction.
(Mark Twain)