The undertakings which bind us to the social body are obligatory only because they are mutual; and their nature is such that in fulfilling them we cannot work for others without working for ourselves. Why is it that the general will is always in the right, and that all continually will the happiness of each one, unless it is because there is not a man who does not think of “each” as meaning him, and consider himself in voting for all? This proves that equality of rights and the idea of justice which such equality creates originate in the preference each man gives to himself, and accordingly in the very nature of man. It proves that the general will, to be really such, must be general in its object as well as its essence; that it must both come from all and apply to all; and that it loses its natural rectitude when it is directed to some particular and determinate object, because in such a case we are judging of something foreign to us, and have no true principle of equity to guide us.