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“That you cannot prove God’s non-existence is accepted and trivial, if only in the sense that we can never absolutely prove the non-existence of…

— Richard Dawkins

“If theory means a reasonably systematic reflection of our guiding assumptions, it remains as indispensable as ever.”

— Terry Eagleton

Theory, from whatever source, is not perfect until it is reduced to practice.

— Hosea Ballou

“It was a matter of showing by what conjunctions a whole set of practices-- from the moment they became coordinated with a regime of…

— Michel Foucault

To understand the theory which underlies all things is not sufficient. Theory is but the preparation for practice.

— James Stephens

“But theory rarely works in practice, and predictability has a devious sister named complexity. But”

— Jurgen Appelo

“without disbelieving the object of this misconception it is impossible to abandon misconceiving it.”

— Dharmakirti

If you claim to have a theory that deduces unexpected consequences from nontrivial principles, let's see it.

— Noam Chomsky

I think that it is important to establish a world of place for the characters in improv and there is nothing to be gained…

— Gillian Jacobs

In point of fact, no conclusive disproof of a theory can ever be produced; for it is always possible to say that the experimental…

— Karl Popper

“Sometimes, impossibility isn't about defying reason, but simply lack of willingness to believe in otherwise.”

— Toba Beta

“Once we allow the logical reconstruction of something (a being, a theodicy, and the like) to have internal self contradiction, it obviously becomes possible…

— Stanisław Lem