By this Sartre means that, given that the "For-itself" desires to attain a point of view in which it is both subject and object, one possible strategy is to gather and intensify every feeling and posture in which the self appears as an object to be rejected, tested, and humiliated; and in this way the For-itself strives toward a point of view in which there is only one subjectivity in the relationship, which would be both that of the abuser and the abused. Conversely, Sartre held sadism to be the effort to annihilate the subjectivity of the victim. That means that the sadist is exhilarated by the emotional distress of the victim because they seek a subjectivity that views the victim as both subject and object.This argument may appear stronger if it is understood that this "Look of the Other" theory is either only an aspect of the faculties of desire, or somehow its primary faculty. This does not account for the turn that Deleuze took for his own theory of these matters, but the premise of "desire as Look" is associated with theoretical distinctions always detracted by Deleuze, in what he regarded as its essential error to recognize "desire as lack"—which he identified in the philosophical temperament of Plato, Socrates, and Lacan.
The sadist attempts to destroy the ego in an effort to unify the id and super-ego, in effect gratifying the most base desires the sadist can express while ignoring or completely suppressing the will of the ego, or of the conscience. Thus, Deleuze attempts to argue that masochism and sadism arise from such different impulses that the combination of the two terms is meaningless and misleading. A masochists perception of their own self-subjugating sadistic desires and capacities are treated by Deleuze as reactions to prior experience of sadistic objectification. (For example, in terms of psychology, compulsively defensive appeasement of pathological guilt feelings as opposed to the volition of a strong free will.) The epilogue of Venus In Furs shows the character of Severin has become embittered by his experiment in the alleged control of masochism, and advocates instead the domination of women.Before Deleuze, however, Sartre had presented his own theory of sadism and masochism, at which Deleuzes deconstructive argument, which took away the symmetry of the two roles, was probably directed. Because the pleasure or power in looking at the victim figures prominently in sadism and masochism, Sartre was able to link these phenomena to his famous philosophy of the "Look of the Other". Sartre argued that masochism is an attempt by the "For-itself" (consciousness) to reduce itself to nothing, becoming an object that is drowned out by the "abyss of the Others subjectivity".