A chief source of that suffering which we found above to be essential and inevitable to all life is, when it really appears in a definite form, that _Eris_, the conflict of all individuals, the expression of the contradiction, with which the will to live is affected in its inner self, and which attains a visible form through the _principium individuationis_. Wild-beast fights are the most cruel means of showing this directly and vividly. In this original discord lies an unquenchable source of suffering, in spite of the precautions that have been taken against it, and which we shall now consider more closely. § 62. It has already been explained that the first and simplest assertion of the will to live is only the assertion of one’s own body, _i.e._, the exhibition of the will through acts in time, so far as the body, in its form and design, exhibits the same will in space, and no further. This assertion shows itself as maintenance of the body, by means of the application of its own powers. To it is directly related the satisfaction of the sexual impulse; indeed this belongs to it, because the genitals belong to the body. Therefore _voluntary_ renunciation of the satisfaction of that impulse, based upon no _motive_, is already a denial of the will to live, is a voluntary self-suppression of it, upon the entrance of knowledge which acts as a _quieter_. Accordingly such denial of one’s own body exhibits itself as a contradiction by the will of its own phenomenon. For although here also the body objectifies in the genitals the will to perpetuate the species, yet this is not willed. Just on this account, because it is a denial or suppression of the will to live, such a renunciation is a hard and painful self-conquest; but of this later. But since the will exhibits that _self-assertion_ of one’s own body in innumerable individuals beside each other, it very easily extends in one individual, on account of the egoism peculiar to them all, beyond this assertion to the _denial_ of the same will appearing in another individual. The will of the first breaks through the limits of the assertion of will of another, because the individual either destroys or injures this other body itself, or else because it compels the powers of the other body to serve _its own_ will, instead of the will which manifests itself in that other body. Thus if, from the will manifesting itself as another body, it withdraws the powers of this body, and so increases the power serving its own will beyond that of its own body, it consequently asserts its own will beyond its own body by means of the negation of the will appearing in another body. This breaking through the limits of the assertion of will of another has always been distinctly recognised, and its concept denoted by the word _wrong_. For both sides recognise the fact instantly, not, indeed, as we do here in distinct abstraction, but as feeling. He who suffers wrong feels the transgression