The true function of logic ... as applied to matters of experience ... is analytic rather than constructive; taken a priori, it shows the possibility of hitherto unsuspected alternatives more often than the impossibility of alternatives which seemed prima facie possible. Thus, while it liberates imagination as to what the world may be, it refuses to legislate as to what the world is

Logic, n. The art of thinking and reasoning in strict accordance with the limitations and incapacities of the human misunderstanding. The basic of logic is the syllogism, consisting of a major and a minor premise and a conclusion - thus:

Major Premise: Sixty men can do a piece of work sixty times as quickly as one man.
Minor Premise: One man can dig a post-hole in sixty seconds; Therefore-
Conclusion: Sixty men can dig a post-hole in one second.

This may be called syllogism arithmetical, in which, by combining logic and mathematics, we obtain a double certainty and are twice blessed.

Logic is simply the language of convenient rationalization in a pseudo-science-loving civilization.

the business of Logic is not the analysis of generalities but their mingling.

The logic of the world which the propositions of logic show in tautologies, mathematics shows in equations.

Logic is the necessary product of intelligence and sincerity. It cannot be learned. It is the child of a clear head and a good heart.

Logic is relative.

My life isn’t theories and formulae. It’s part instinct, part common sense. Logic is as good a word as any, and I’ve absorbed what logic I have from everything and everyone… from my mother, from training as a ballet dancer, from Vogue magazine, from the laws of life and health and nature.

The system of logic is the realm of shadows, the world of simple essentialities, freed of all sensuous concretion. To study this science, to dwell and to labor in this realm of shadows, is the absolute culture and discipline of consciousness.

Philosophy is not a theory but an activity.

The “experience” which we need to understand logic is not that such and such is the case, but that something is; but that is no experience. Logic precedes every experience — that something is so. It is before the How, not before the What.

In my perception, the world wasn't a graph or a formula or an equation. It was a story

Logic is the foundation of the certainty of all the knowledge we acquire.

At the side of Enjolras, who represented the logic of revolution, was Combeferre, representing its philosophy. The difference between logic and philosophy is that one can decide upon war, whereas the other can only be fulfilled by peace.