Logic Quotes

500+ Sourced quotes

Hegel's... deepest objections to the view of knowledge as method and power, as controlling knowledge (Scheler, Tillich) or the logic of domination (Marcuse), are moral. He agrees with Schiller that utility is the great idol of the times.

Merold Westphal

That night Paradine slept badly. Holloway's parallel had been ill-chosen. It led to disturbing theories. The x factor — The children were using the equivalent of algebraic reasoning, while adults used geometry.
Fair enough. Only —
Algebra can give you answers that geometry cannot, since there are certain terms and symbols which cannot be expressed geometrically. Suppose x logic showed conclusions inconceivable to an adult mind?

As in political revolutions, so in paradigm choice—there is no standard higher than the assent of the relevant community...this issue of paradigm choice can never be unequivocally settled by logic and experiment alone.

I am now convinced that the Reformation of the church will come from the east. In the west there is no spiritual life. (I'm speaking of the Protestant church and not the Roman Catholic church.) We have civilisation and we try to keep up culture, but we have no spiritual life. The east has a spiritual life. They know that colour influences the spirit more than black lines. In Russia there is still the notion that art is nearer religion than thinking in lines and logic. All abstract rationalising needs to be filled out with sensual thinking and feelings. In Russia there is still a strong impression of colour.

Martin Niemöller

Brought up a Presbyterian, indoctrinated from the Catechism, and being naturally of an inquiring mind, I fell a ready prey to the logic of infidelity, as soon as I began to think for myself. But that which at first threatened to be the utter shipwreck of faith in God and the Bible was, under God's providence, over-ruled for good, and merely wrecked my confidence in human creed and systems of Bible misinterpretations.

Charles Taze Russell

When you squeeze an orange, you'll always get orange juice to come out. What comes out is what's inside. The same logic applies to you: when someone squeezes you, puts pressure on you, or says something unflattering or critical, and out of you comes anger, hatred, bitterness, tension, depression, or anxiety, that is what's inside. If love and joy are what you want to give and receive, change your life by changing what's inside

Life teaches us that human thought almost never walks hand in hand with logic, and it is usually counterproductive to raise the point.

Jeff Lindsay (writer)

General scepticism is the live mental attitude of refusing to conclude. It is a permanent torpor of the will, renewing itself in detail towards each successive thesis that offers, and you can no more kill it off by logic than you can kill off obstinacy or practical joking.

My day passes between logic, whistling, going for walks, and being depressed. I wish to God that I were more intelligent and everything would finally become clear to me - or else that I needn't live much longer.

Ludwig Wittgenstein

Certainly, truth should be strenuous and bold; but the strongest things are not always the noisiest, as any one may see who compares scolding with logic.

Edwin Hubbell Chapin

The most refined abstractions of logic conduct to a view of life, which, though startling to the apprehension, is, in fact, that which the habitual sense of its repeated combinations has extinguished in us. It strips, as it were, the painted curtain from this scene of things. I confess that I am one of those who are unable to refuse my assent to the conclusions of those philosophers who assert that nothing exists but as it is perceived.

Percy Bysshe Shelley

Neither logic nor scientific evidence supports such a belief. Although spinal manipulation can relieve certain types of back pain, neck pain, and other musculoskeletal symptoms, there is no scientific evidence that it can restore or maintain health. As a result of expressing my opinion on this subject, I have been called a chiropractic heretic.

When an apparent fact runs contrary to logic and common sense, it's obvious that you have failed to interpret the fact correctly.

Robert A. Heinlein

An expert logician will not necessarily be a passable mathematician for all his skill in logic, any more than a scholarly prosodist will be a respectable poet for all his mastery of meter.

Eric Temple Bell

Every science that has thriven has thriven upon its own symbols: logic, the only science which is admitted to have made no improvements in century after century, is the only one which has grown no symbols.

Augustus De Morgan

I had thought that growing up's consolation was that you could escape from the arbitrariness of things, that somehow one acquired more control. Now you had two numbers until you were ninety-nine. And it wasn't true. Growing up was just more of the same but taller. What happened was all luck. There was no logic.

Janice Galloway

The reformers' preferred metaphor is "leveling the playing field." They should listen to the logic of their language: fields are leveled by bulldozers.

At first sight, one does not see what relations there can be between religion and logic.

Émile Durkheim

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

Charles Eisenstein

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.

Logic is one thing and common sense another.

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.