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

— Charles Sanders Peirce Collected Papers (1931)

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Philosophy

More quotes by Charles Sanders Peirce

The entire universe is perfused with signs, if it is not composed exclusively of signs.

Essays in Zoosemiotics (1990)

The idea does not belong to the soul; it is the soul that belongs to the idea.

Collected Papers (1931)

Mere imagination would indeed be mere trifling; only no imagination is mere.

Collected Papers (1931)

A sign is in a conjoint relation to the thing denoted and to the mind.

On The Algebra of Logic (1885)

It is important to understand what I mean by semiosis.

Pragmatism (1907)

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The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents.

H. P. Lovecraft The Call of Cthulhu (1926)

There is no governor anywhere; you are all absolutely free. There is no restraint that cannot be escaped.

Robert Anton Wilson

Every morning
I shall concern myself anew about the boundary
Between the love-deed-Yes and the power-deed-No
And pressing forward honor reality.

Martin Buber Power and Love (1926)

In the province of the mind, what one believes to be true is true or becomes true, within certain limits to be found experientially and experimentally. These limits are further beliefs to be transcended.

John C. Lilly The Human Biocomputer (1974)

Attribution

Quote text and notes from Wikiquote: Charles Sanders Peirce (page history), available under CC BY-SA 4.0. Source quality and labels are our own summary of what Wikiquote records.