All law relations are determined by this principle: each one must restrict his freedom by the possibility of the freedom of the other. … My freedom is limited by the freedom of the other only on condition that he limits his freedom by the conception of mine. Otherwise he is lawless. Hence, if a law-relation is to result from my cognition of the other, the cognition and the consequent limitation of freedom must have been mutual. All law-relation between persons is, therefore, conditioned by their mutual cognition of each other, and is, at the same time, completely determined thereby.
— JOHANN GOTTLIEB FICHTE