As regards the doing of wrong generally, it occurs either through violence or through craft; it matters not which as far as what is morally essential is concerned. First, in the case of murder, it is a matter of indifference whether I make use of a dagger or of poison; and the case of every bodily injury is analogous. Other cases of wrong can all be reduced to the fact that I, as the doer of wrong, compel another individual to serve my will instead of his own, to act according to my will instead of according to his own. On the path of violence I attain this end through physical causality, but on the path of craft by means of motivation, i.e., by means of causality through knowledge; for I present to his will [pg 435] illusive motives, on account of which he follows my will, while he believes he is following his own. Since the medium in which the motives lie is knowledge, I can only accomplish this by falsifying his knowledge, and this is the lie. The lie always aims at influencing another's will, not merely his knowledge, for itself and as such, but only as a means, so far as it determines his will. For my lying itself, inasmuch as it proceeds from my will, requires a motive; and only the will of another can be such a motive, not his knowledge in and for itself; for as such it can never have an influence upon my will, therefore it can never move it, can never be a motive of its aim. But only the willing and doing of another can be this, and his knowledge indirectly through it. This holds good not only of all lies that have manifestly sprung from self-interest, but also of those which proceed from pure wickedness, which seeks enjoyment in the painful consequences of the error into which it has led another. Indeed, mere empty boasting aims at influencing the will and action of others more or less, by increasing their respect or improving their opinion of the boaster. The mere refusal of a truth, i.e., of an assertion generally, is in itself no wrong, but every imposing of a lie is certainly a wrong. He who refuses to show the strayed traveller the right road does him no wrong, but he who directs him to a false road certainly does. It follows from what has been said, that every lie, like every act of violence, is as such wrong, because as such it has for its aim the extension of the authority of my will to other individuals, and so the assertion of my will through the denial of theirs, just as much as violence has. But the most complete lie is the broken contract, because here all the conditions mentioned are completely and distinctly present together. For when I enter into a contract, the promised performance of the other individual is directly and confessedly the motive for my reciprocal performance. The promises were deliberately [pg 436] and formally exchanged. The fulfilment of the declarations made is, it is assumed, in the power of each. If the other breaks the covenant, he has deceived me, and by introducing merely illusory motives into my knowledge, he has bent my will according to his intention; he has extended the control of his will to another individual, and thus has committed a distinct wrong. On this is founded the moral lawfulness and validity of the contract.