Reason (n.) cannot enlighten us if we prescribe to her beforehand on which side she must incline.
Reason (n.) is feminine in nature... it can only give after it has received.
Reason (n.) brings doubt and error into theory and care and sorrow into practice; perception never does.
Reason (n.) is the one real difference between man and animal, the possession of concepts, which is why animals can neither speak nor laugh.
Reason (n.) is what lifts man out of the brute's present into past and future — and from it spring discretion, care, and anxiety.
Reason (n.) and speech belong together: Cicero rightly places ratio et oratio side by side as what binds men to one another.
Reason (n.) never gives us knowledge first-hand; it only makes permanent and shareable what the understanding has already seen.
Reason (n.) is a prophet, for in showing us the consequence and effect of our actions in the present, it tells us what the future will be.
Reason (n.) has nothing to do with virtue: it serves the villain as readily as the saint, giving great power to great evil as to great good.
Reason (n.) is injected ex post-facto. We do not want a thing because we have found reasons for it, we find reasons for it because we want it.
Reason (n.) is feminine in nature: it has nothing but forms, it only conceives and never generates; it must take all its material from perception.
Reason (n.) in the Latin languages has the same name as a reason for a judgment — ratio, la raison — which shows that finding the grounds of judgments was taken to be Reason's highest business.
Reason (n.) is to man what eyes are to animals that would otherwise know only by touch: it lets him see past and future and the whole wide sphere of the possible.
Reason (n.) as the professors remade it after Jacobi is a little window overlooking the supernatural world, through which truths are handed to us ready cut and dried.
Reason (n.) every simpleton has: give him the premisses and he will draw the conclusion; primary, intuitive knowledge comes from the understanding — herein lies the difference.
Reason (n.) the faculty for the supersensuous, is said by some to see the Absolute, and by others merely to overhear what is going on in cloud-cuckoo-land and pass it to the understanding to be worked up into text-books.