Willard van Orman Quine: Logic

Willard van Orman Quine was American philosopher and logician. Explore interesting quotes on logic.
Willard van Orman Quine: 50   quotes 3   likes

“Implication is thus the very texture of our web of belief, and logic is the theory that traces it.”

Willard van Orman Quine

S. 41
The Web of Belief (1970)

“The word 'definition' has come to have a dangerously reassuring sound, owing no doubt to its frequent occurrence in logical and mathematical writings.”

Willard van Orman Quine

"Two dogmas of Empiricism", p. 26
From a Logical Point of View: Nine Logico-Philosophical Essays (1953)

Mathematics

“Logic chases truth up the tree of grammar.”

Willard van Orman Quine

Philosophy of Logic (1970)
1970s

Truth , Tree

“Even a statement very close to the periphery can be held true in the face of recalcitrant experience by pleading hallucination or by amending certain statements of the kind called logical laws. Conversely, by the same token, no statement is immune to revision. Revision even of the logical law of the excluded middle has been proposed as a means of simplifying quantum mechanics; and what difference is there in principle between such a shift and the shift whereby Kepler superseded Ptolemy, or Einstein Newton, or Darwin Aristotle?”

Willard van Orman Quine Two Dogmas of Empiricism

"Two Dogmas of Empiricism"
From a Logical Point of View: Nine Logico-Philosophical Essays (1953)

Law

“Modern empiricism has been conditioned in large part by two dogmas. One is a belief in some fundamental cleavage between truths which are analytic, or grounded in meanings independently of matters of fact, and truths which are synthetic, or grounded in fact. The other dogma is reductionism: the belief that each meaningful statement is equivalent to some logical construct upon terms which refer to immediate experience. Both dogmas, I shall argue, are ill-founded. One effect of abandoning them is, as we shall see, a blurring of the supposed boundary between speculative metaphysics and natural science. Another effect is a shift toward pragmatism.”

Willard van Orman Quine Two Dogmas of Empiricism

"Two dogmas of Empiricism"
From a Logical Point of View: Nine Logico-Philosophical Essays (1953)

Truth , Science , Parting , Nature