Artificial Quote by Willard Van Orman Quine

To exist (in mathematics), said Henri Poincaré, is to be free from contradiction. But mere existence does not guarantee survival. To survive in mathematics…

— Mark Kac

The self-styled practical man of affairs who pooh-poohs philosophy as a lot of windy notions is himself a pragmatist or a positivist, and a…

— Alan Watts

That which is produced with intention has passed over from non-existence to existence.

— Maimonides

There's no such thing as non-existence.

— Nikhil Saluja

“[T]he creation out of nothing is no object of philosophy; … for it cuts away the root of all speculation, presents no grappling point…

— Ludwig Feuerbach

The pragmatist turns away from abstraction and insufficiency, from verbal solutions, from bad a priori reasons, from fixed principles, closed systems, and pretended absolutes…

— William James

Now, nothing can be brought from potentiality to actual existence except through something actually existing

— Thomas Aquinas

Everything must justify its existence before the judgment seat of Reason, or give up existence.

— Friedrich Engels

Each new ontological theory, propounded in lieu of previous ones shown to be untenable, has been followed by a new criticism leading to a…

— Herbert Spencer

For nothing ought to be posited without a reason given, unless it is self-evident (literally, known through itself) or known by experience or proved…

— William of Ockham

Pragmatism , in trying to turn experimental physics into a prototype of all science and to model all spheres of intellectual life after the…

— Max Horkheimer

“I call this double truth of a thing its fragility, the inner fragility of a thing is why a thing can exist at all.…

— Timothy Morton