Memory, then, is a necessary part of the logical faculty. … The proposition A = A must have a psychological relation to time, otherwise it would be A… - Otto Weininger

Psychologism 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.

The 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.

That which enables man to have a real relation to truth and which removes his temptation to lie, must be something independent of all time, something absolutely unchangeable, which as faithfully reproduces the old as if it were new, because it is permanent itself; it can only be that source in which all discrete experiences unite and which creates from the first a continuous existence. It is what produces the feeling of responsibility which oppresses all men, young and old, as to their actions, which makes them know that they are responsible, which leads to the phenomena of repentance and consciousness of sin, which calls to account before an eternal and ever present self things that are long past, its judgment being subtler and more comprehensive than that of any court of law or of the laws of society, and which is exerted by the individual himself quite independently of all social codes (so condemning the moral psychology which would derive morality from the social life of man).