A 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 (1906). “Sex & Character”, p.150, Рипол Классик
![A 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.](http://cdn.quoteddaily.com/images/otto-weininger/a-creature-that-cannot-grasp-the-mutual-exclusiveness-of-a-and-not-a-has-no-difficulty-in-lying-more-than.jpg)