Logic Quotes

Logic here isn’t just about cold calculations or rigid proofs—it’s the quiet hum of reason cutting through chaos, the moment clarity feels like a revelation. These words balance the precision of thought with the weight of what happens when the mind finally aligns with truth.

1,153 QUOTES — PAGE 15 OF 58

“Language as putative science. - The significance of language for the evolution of culture lies in this, that mankind set up in language a separate world beside the other world, a place it took to be so firmly set that, standing upon it, it could lift the rest of the world off its hinges and make itself master of it. To the extent that man has for long ages believed in the concepts and names of things as in aeternae veritates he has appropriated to himself that pride by which he raised himself above the animal: he really thought that in language he possessed knowledge of the world. The sculptor of language was not so modest as to believe that he was only giving things designations, he conceived rather that with words he was expressing supreame knowledge of things; language is, in fact, the first stage of occupation with science. Here, too, it is the belief that the truth has been found out of which the mightiest sources of energy have flowed. A great deal later - only now - it dawns on men that in their belief in language they have propagated a tremendous error. Happily, it is too late for the evolution of reason, which depends on this belief, to be put back. - Logic too depends on presuppositions with which nothing in the real world corresponds, for example on the presupposition that there are identical things, that the same thing is identical at different points of time: but this science came into existence through the opposite belief (that such conditions do obtain in the real world). It is the same with mathematics, which would certainly not have come into existence if one had known from the beginning that there was in nature no exactly straight line, no real circle, no absolute magnitude.”

Friedrich Nietzsche

“And one cold Tuesday in December, when Marie-Laure has been blind for over a year, her father walks her up rue Cuvier to the edge of the Jardin des Plantes."Here, ma chérie, is the path we take every morning. Through the cedars up ahead is the Grand Gallery.""I know, Papa."He picks her up and spins her around three times. "Now," he says, "you're going to take us home."Her mouth drops open."I want you to think of the model, Marie.""But I can't possibly!""I'm one step behind you. I won't let anything happen. You have your cane. You know where you are.""I do not!""You do."Exasperation. She cannot even say if the gardens are ahead or behind."Calm yourself, Marie. One centimeter at a time.""I'm far, Papa. Six blocks, at least.""Six blocks is exactly right. Use logic. Which way should we go first?"The world pivots and rumbles. Crows shout, brakes hiss, someone to her left bangs something metal with what might be a hammer. She shuffles forward until the tip of her cane floats in space. The edge of a curb? A pond, a staircase, a cliff? She turns ninety degrees. Three steps forward. Now her cane finds the base of a wall. "Papa?""I'm here."Six paces seven paces eight. A roar of noise - an exterminator just leaving a house, pump bellowing - overtakes them. Twelve paces farther on, the bell tied around the handle of a shop door rings, and two women came out, jostling her as they pass.Marie-Laure drops her cane; she begins to cry. Her father lifts her, holds her to his narrow chest."It's so big," she whispers."You can do this, Marie."She cannot.”

Anthony Doerr