Logic Quotes

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In laying hands upon the sacred ark of absolute permanency, in treating the forms that had been regarded as types of fixity and perfection as originating and passing away, the Origin of Species introduced a mode of thinking that in the end was bound to transform the logic of knowledge, and hence the treatment of morals, politics, and religion.

Logic is one thing and common sense another.

Future lawyers should be more aware that law is not a system of abstract logic, but the web of arrangements, rooted in history but also in hopes, for promoting to a maximum the full use of a nation's resources and talents.

Felix Frankfurter

The metaphoric mind includes rationality, linearity, and logic - for it created them. But like some children, the rational mind often seems embarrassed by the presence of its parents.

The machine has no feelings, it feels no fear and no hope... it operates according to the pure logic of probability. For this reason I assert that the robot perceives more accurately than man.

The logic is backwards. Genius is the result of doing what you love, not a prerequisite for it.

Charles Eisenstein

Poetry, even that of the loftiest, and seemingly, that of the wildest odes, [has] a logic of its own as severe as that of science; and more difficult, because more subtle, more complex, and dependent on more and more fugitive causes. In the truly great poets... there is a reason assignable, not only for every word, but for the position of every word.

Samuel Taylor Coleridge

Those philosophers who believe in the absolute logic of truth have never had to discuss it on close terms with a woman.

A scientist works largely by intuition. Given enough experience, a scientist examining a problem can leap to an intuition as to what the solution 'should look like.'... Science is ultimately based on insight, not logic.

Guy Consolmagno

We are what we were at birth, and each trait has remained in conformity with earth's and with heaven's logic: Be the devil's tool, resort to black magic, None can diverge from the ends which Heaven foreordained.

The fact is, Scripture is filled with divine actions that don't fit our human standards of logic or morality. But they don't need to, because we are the clay and He is the Potter. We need to stop trying to domesticate God or confine Him to tidy categories and compartments that reflect our human sentiments rather than His inexplicable ways.

Once there was Louis Armstrong blowing his beautiful top in the muds of New Orleans; before him the mad musicians who had paraded on official days and broke up their Sousa marches into ragtime. Then there was swing, and Roy Eldridge, vigorous and virile, blasting the horn for everything it had in waves of power and logic and subtlety - leaning into it with glittering eyes and a lovely smile and sending it out broadcast to rock the jazz world.

Even though most people who reject Christianity treat it as a refuge for enemies of reason, the truth is that there may be no worldview in the history of the human race that has a higher regard for the laws of logic.

It is all about numbers. It is all about sequence. It's the mathematical logic of being alive. If everything kept to its normal progression, we would live with the sadness-cry and then walk-but what really breaks us cleanest are the losses that happen out of order.

Trying to understand the way nature works involves a most terrible test of human reasoning ability. It involves subtle trickery, beautiful tightropes of logic on which one has to walk in order not to make a mistake in predicting what will happen.

Paul Feyerabend

The world of shabby gentility is like no other; its sacrifices have less logic, its standards are harsher, its relation to reality is dimmer than comfortable property or plain poverty can understand.

Mathematics, that giant pincers of scientific logic.

Facts do not "speak for themselves"; they are read in the light of theory. Creative thought, in science as much as in the arts, is the motor of changing opinion. Science is a quintessentially human activity, not a mechanized, robotlike accumulation of objective information, leading by laws of logic to inescapable interpretation.

Stephen Jay Gould

How does it happen that there are people who do not understand mathematics? If mathematics invokes only the rules of logic, such as are accepted by all normal minds; if its evidence is based on principles common to all men, and that none could deny without being mad, how does it come about that so many persons are here refractory?

Henri Poincaré

She was, in fact, quite a pleasant looking girl, even if her bosom had clearly been intended for a girl two feet taller; but she was not Her. The Egregious Professor of Grammar and Usage would have corrected this to "she was not she," which would have caused the Professor of Logic to spit out his drink.

Terry Pratchett

If human thought is a growth, like all other growths, its logic is without foundation of its own, and is only the adjusting constructiveness of all other growing things. A tree cannot find out, as it were, how to blossom, until comes blossom-time. A social growth cannot find out the use of steam engines, until comes steam-engine-time.

Logic has virtually nothing to do with the way we think.

The transition between competing paradigms cannot be made a step at a time, forced by logic and neutral experience. Like the gestalt switch, it must occur all at once (though not necessarily in an instant) or not at all.

The laws of physics and of logic... the number system... the principle of algebraic substitution. These are ghosts. We just believe in them so thoroughly they seem real.

Robert M. Pirsig

My growing environmental awareness only added more fuel to the argument for having no children. And the logic of never-ending consumption didn't just harm the environment, it killed people too.