Otto Weininger Quotes (1880-1903)

Philosopher, Writer

About Otto Weininger

Otto Weininger (April 3, 1880 – October 4, 1903) was an Austrian philosopher of Jewish descent. In 1903, he published the book Geschlecht und Charakter (Sex and Character), which gained popularity after his suicide at the age of 23. Today, Weininger is generally viewed as misogynistic and antisemitic in academic circles, but was held to be a great genius by the philosopher Ludwig Wittgenstein and the writer August Strindberg.

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Explore our curated collection of the most famous and impactful Otto Weininger quotes.

β€œIdiocy: crudeness’ intellectual equivalent.”
Otto Weininger
β€œTo understand a man is really to be that man.”
Otto Weininger
β€œThe highest expression of all morality is: Be!”
Otto Weininger
β€œGenius declares itself to be a kind of higher masculinity.”
Otto Weininger
β€œMan must act in such a way that the whole of his individuality lies in each moment.”
Otto Weininger
β€œA man is himself important precisely in proportion that all things seem important to him.”
β€œWoman, in short, has an unconscious life, man a conscious life, and the genius the most conscious life.”
Otto Weininger
β€œA man is first reverent about himself, and self-respect is the first stage in reverence for all things.”
Otto Weininger
β€œNot only virtue, but also insight, not only sanctity but also wisdom, are the duties and tasks of mankind.”
Otto Weininger
β€œThe great man of science, unless he is also a philosopher, … deserves the title of genius as little as the man of action.”
Otto Weininger
β€œThe number of different aspects that the face of a man has assumed may be taken almost as a physiognomical measure of his … genius.”
Otto Weininger
β€œIf man were not free, then he could not conceive of causality at all, and could not form any concept of it. Insight into lawfulness is already freedom from it.”
Otto Weininger
β€œThe deepest, the intelligible, part of the nature of man is that part which does not take refuge in causality, but which chooses in freedom the good or the bad.”
Otto Weininger
β€œNo one can understand himself, for to do that he would have to get outside himself; the subject of the knowing and willing activity would have to become its own object.”
β€œThere are men who are willing to marry a woman they do not care about merely because she is admired by other men. Such a relation exists between many men and their thoughts.”
β€œMemory, then, is a necessary part of the logical faculty. … The proposition A = A must have a psychological relation to time, otherwise it would be At1 = At2.”
β€œNo two moments in the life of an individual are exactly alike; there is between the later and the earlier periods only the similarity of the higher and lower parts of a spiral ascent.”
β€œA creature that cannot grasp the mutual exclusiveness of A and not A has no difficulty in lying; more than that, such a creature has not even any consciousness of lying, being without a standard of truth.”
Otto Weininger
β€œThat is why man can also never understand himself: For he is himself a timeless act; an act which he performs continuously, and there is no moment in which he might not perform it, as there would have to be to understand himself.”
β€œIn order to depict a man one must understand him, and to understand him one must be like him; in order to portray his psychological activities one must be able to reproduce them in oneself. To understand a man one must have his nature in oneself.”
Otto Weininger
β€œPsychologism is the most comfortable conception of life, because according to it there are no longer any more problems. That is why it also condemns all solutions from the outset, since it acknowledges the actual problems as little as the idea of truth.”
β€œColour-blindness always extends to the complementary colours. Those who are red blind are also green blind; those who are blind to blue have no consciousness of yellow. This law holds good for all mental phenomena; it is a fundamental condition of consciousness.”
Otto Weininger
β€œMan is alone in the world, in tremendous eternal isolation. He has no object outside himself; lives for nothing else; he is far removed from being the slave of his wishes, of his abilities, of his necessities; he stands far above social ethics; he is alone. Thus he becomes one and all.”
β€œIn the case of complex personalities the matter stands thus: one of these can understand other men better than they can understand themselves, because within himself he has not only the character he is grasping, but also its opposite. Duality is necessary for observation and comprehension.”
β€œThe logical axioms are the principle of all truth. These posit an existence towards which all cognition serves. Logic is a law which must be obeyed, and man realises himself only in so far as he is logical. He finds himself in cognition. All error must be felt to be crime. And so man must not err. He must find the truth.”

Otto Weininger Quotes by Topic

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Otto Weininger on Logic 2 quotes

β€œLogic is a law which must be obeyed, and man realizes himself only in so far as he is logical. He finds himself in cognition.”
Otto Weininger
View all 2 quotes on Logic →

Otto Weininger on Law of Identity 2 quotes

β€œMemory, then, is a necessary part of the logical faculty. … The proposition A = A must have a psychological relation to time, otherwise it would be At1 = At2.”
Otto Weininger
View all 2 quotes on Law of Identity →

Otto Weininger on Genius 2 quotes

β€œIf it really were the case, as popular opinion has tried to establish, that the genius were separated from ordinary men by a thick wall through which no sound could penetrate, then all understanding of the efforts of genius would be denied to ordinary men, and their works would fail to make any impression on them. All hopes of progress depend on this being untrue. And it is untrue. The difference between men of genius and the others is quantitative not qualitative, of degree not of kind.”
Otto Weininger
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Otto Weininger on Refusal of work

β€œThe great genius does not let his work be determined by the concrete finite conditions that surround him.”
Otto Weininger

Otto Weininger on Freedom

β€œIf man were not free, then he could not conceive of causality at all, and could not form any concept of it. Insight into lawfulness is already freedom from it.”
Otto Weininger

Otto Weininger on Free will

β€œIf man were not free, then he could not conceive of causality at all, and could not form any concept of it. Insight into lawfulness is already freedom from it.”
Otto Weininger

Otto Weininger on Determinism

β€œIf man were not free, then he could not conceive of causality at all, and could not form any concept of it. Insight into lawfulness is already freedom from it.”

Otto Weininger on Identity

β€œMemory, then, is a necessary part of the logical faculty. … The proposition A = A must have a psychological relation to time, otherwise it would be At1 = At2.”
Otto Weininger

Otto Weininger on Memory

β€œMemory, then, is a necessary part of the logical faculty. … The proposition A = A must have a psychological relation to time, otherwise it would be At1 = At2.”
Otto Weininger

Otto Weininger on Nature

β€œThe deepest, the intelligible, part of the nature of man is that part which does not take refuge in causality, but which chooses in freedom the good or the bad.”
Otto Weininger

Otto Weininger on Ageing

β€œNo two moments in the life of an individual are exactly alike; there is between the later and the earlier periods only the similarity of the higher and lower parts of a spiral ascent.”
Otto Weininger

Otto Weininger on Error

β€œLogic is a law which must be obeyed, and man realizes himself only in so far as he is logical. He finds himself in cognition.All error must be felt to be crime. And so man must not err.”
Otto Weininger

About Otto Weininger

Otto Weininger (April 3, 1880 – October 4, 1903) was an Austrian philosopher of Jewish descent. In 1903, he published the book Geschlecht und Charakter (Sex and Character), which gained popularity after his suicide at the age of 23. Today, Weininger is generally viewed as misogynistic and antisemitic in academic circles, but was held to be a great genius by the philosopher Ludwig Wittgenstein and the writer August Strindberg.