It has been already sufficiently proved, that the soul is nothing more than the body, considered relatively to some of its functions, more concealed than others: it has been shewn, that this soul, even when it shall be supposed immaterial, is continually modified conjointly with the body; is submitted to all its motion; that without this it would remain inert and dead: that, consequently, it is subjected to the influence of those material, to the operation those physical causes, which give impulse to the body; of which the mode of existence, whether habitual or transitory, depends upon the material elements by which it is surrounded; that form its texture; that constitute its temperament; that enter into it by the means of the aliments; that penetrate it by their subtility; the faculties which are called intellectual, and those qualities which are styled moral, have been explained in a manner purely physical; entirely natural: in the last place, it has been demonstrated, that all the ideas, all the systems, all the affections, all the opinions, whether true or false, which man forms to himself, are to be attributed to his physical powers; are to be ascribed to his material senses. Thus man is a being purely physical; in whatever manner he is considered, he is connected to universal Nature: submitted to the necessary, to the immutable laws that she imposes on all the beings she contains, according to their peculiar essences; conformable to the respective properties with which, without consulting them, she endows each particular species. Man's life is a line that Nature commands him to describe upon the surface of the earth: without his ever being able to swerve from it even for an instant. He is born without his own consent; his organizations does in no wise depend upon himself; his ideas come to him involuntarily; his habits are in the power of those who cause him to contract them; he is unceasingly modified by causes, whether visible or concealed, over which he has no controul; give the hue to his way of thinking, and determine his manner of acting. He is good or bad--happy or miserable--wise or foolish--reasonable or irrational, without his will going for anything in these various states. Nevertheless, in despite of the shackles by which he is bound, it is pretended he is a free agent, or that independent of the causes by which he is moved, he determines his own will; regulates his own condition.