Logic (n.) is a form of optimism, as all philosophers are apologist for knowledge, believing that it must be in the highest degree useful.
Logic (n.) is founded upon suppositions which do not correspond to anything in the actual world - for example, the supposition of the equality of things, and that of the identity of the same thing at different times.
Logic (n.) rests on presuppositions nothing in the real world corresponds to — that there are identical things — and mathematics would never have been born had we known there is no straight line in nature.
Logic (n.) arose out of illogic: the tendency to treat as equal what is merely similar — and those who reasoned more cautiously, perhaps more truly, perished.
Logic (n.) began as the inclination to see things as equal, held in check by utility — exactly as protoplasm makes what it appropriates equal to itself and files it in its own forms.
Logic (n.) does not spring from will to truth: it must first falsify all events by assuming identical cases, and only then can it carry through its "truth."
Logic (n.) is perhaps an imperative, not to know the true, but to posit and arrange a world that shall be called true by us.
Logic (n.) applies, like geometry and arithmetic, only to fictitious entities we have created — an attempt to make the actual world formulatable and calculable for us.
Logic (n.) does not originate in the will to truth: it can only operate once identical cases have been feigned, after a fundamental falsification of all events.
Logic (n.) grew from herd instinct: assuming like cases presupposes the 'like soul', for the sake of communication and mastery.
Logic (n.) rests on the belief in things: the A of logic is, like the atom, a reconstruction of the 'thing' — make logic the criterion of being and you posit a 'true world' that is the illusory one again.
Logic (n.) applies only to fictitious truths we created, like geometry and arithmetic — the attempt to make the world formulatable and calculable for us.