Assertion Quote by James Anthony Froude

Philosophy is doubt

— Michel De Montaigne

In philosophy you're never 100% sure. You're always undermining what you think you know. That's always been my philosophy and my intellectual ethos.

— Adam Conover

“My philosophy is ‘When in doubt, you can live without.”

— Christin Lovell

Philosophy starts with doubt and loves only truth.

— Henri Frederic Amiel

Philosophy, though unable to tell us with certainty what is the true answer to the doubts which it raises, is able to suggest many…

— Bertrand Russell

All the progress we have made in philosophy ... is the result of that methodical skepticism which is the element of human freedom.

— Charles Sanders Peirce

Philosophy is "an unusually stubborn attempt to think clearly.

— William James

Infinite possibility in all things is a certainty. That pretty much covers theology and philosophy for me.

— Robert Fulghum

A philosophy that begins in doubt assails what no-one believes, and invites us to nothing believable

— Roger Scruton

Skepticism is the first step on the road to philosophy.

— Denis Diderot

“Let us not pretend to doubt in philosophy what we do not doubt in our hearts.”

— Charles Sanders Peirce

All that belongs to human understanding, in this deep ignorance and obscurity, is to be sceptical, or at least cautious, and not to admit…

— David Hume