Abstract

“It is less a matter of happiness and unhappiness than of darkness and light: one does not consist in a pure and simple privation of the other.” In contrast to Condillac, Diderot begins with the recognition of the mutually reflexive character of the state of suffering, which is independent of an alternation of pleasure and pain. Or rather, the painful state is spontaneously devalued without any invocation of a hypothetical state of constant happiness. The emergence of an affirmation of physical pain belongs to the condition of the living being and assumes an immediate conceptualization of suffering, even in the imaginary state of an eternal suffering. For Diderot, questioning the meaning of existence goes hand in hand with this innate and unconditioned positing of an unhappy state. Such a postulate makes it more difficult to maintain the stereotypical view that the materialist attitude is one of indifference. Recognizing the necessary laws of matter and identifying disorders as rational productions does not amount to saying that whatever turns out to be necessary is in fact allowable. Matter conditions the constitution of morality, feelings, and thoughts. The human being, however, displays signs of revolt, as well as a capacity to adjust to his deficient states by drawing on the universal tendency of living beings to complicate the necessity of determining what is preferable and rejecting what is painful. To persevere in one’s being, and thereby lay down conditions for an assent to existence, is thus to weaken the pessimism of a blind necessitarianism. The establishment of a natural and material axiology then allows one to grasp the metaphysical implications of this medically grounded vitalism.