Charles Sanders Peirce Quotes About Skepticism

• 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, Progress, Atheism

• Do you call it doubting to write down on a piece of paper that you doubt? If so, doubt has nothing to do with any serious business. But do not make believe; if pedantry has not eaten all the reality out of you, recognize, as you must, that there is much that you do not doubt, in the least. Now that which you do not at all doubt, you must and do regard as infallible, absolute truth.

  Charles Sanders Peirce

  Believe, Writing, Reality

  Charles Sanders Peirce (1958). “Selected Writings (Values in a Universe of Chance)”, p.188, Courier Corporation

• It has often been argued that absolute scepticism is self-contradictory; but this is a mistake: and even if it were not so, it would be no argument against the absolute sceptic, inasmuch as he does not admit that no contradictory propositions are true. Indeed, it would be impossible to move such a man, for his scepticism consists in considering every argument and never deciding upon its validity; he would, therefore, act in this way in reference to the arguments brought against him.

  Charles Sanders Peirce

  Mistake, Moving, Men

  Charles Sanders Peirce, Nathan Houser, Christian J.W. J. W. Kloesel (1992). “The Essential Peirce, Volume 1: Selected Philosophical Writings? (1867–1893)”, p.56, Indiana University Press

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