 It is evident, then, that the first three maxims of the “provisional moral code” are just that—provisional rules that Descartes will follow while he carries out his search for certain knowledge—and that he is confident that this search will terminate in knowledge of “true goods” that will supply reliable directives for action. Descartes hints at the range of these goods in Part Five of the Discourse. They include the maintenance of health, “which is undoubtedly the first good [le premier bien] and the foundation of all the other goods in this life.” Because “the mind depends so much on the temperament and disposition of the bodily organs,” Descartes adds, we must look to medicine if we are “to find some means of making men in general wiser and more skilful than they have been up till now” (AT VI 62/CSM I 143). The extent of Descartes’ commitment to the integration of physical and psychological health will become apparent in the Passions of the Soul. It would be a mistake, however, to conclude from this that he proposes a reduction of ethics to medicine. As presented already in the Discourse, his ethics is founded on an ideal of virtue as a perfected power of judgment, together with the assumption that virtue by itself is sufficient for happiness: