associated, his judgment is erroneous, his brain is saturated with vicious, with wicked systems, which necessarily have an influence over his conduct, which are continually disturbing his mind, and confounding his reason. Man's senses, as it has been shewn, are the only means by which he is enabled to ascertain whether his opinions are true or false, whether his conduct is useful to himself and beneficial to others, whether it is advantageous or disadvantageous. But that his senses may be competent to make a faithful relation--that they may be in a capacity to impress true ideas on his brain, it is requisite they should be sound; that is to say, in the state necessary to maintain his existence; in that order which is suitable to his preservation--that condition which is calculated to ensure his permanent felicity. It is also indispensable that his brain itself should be healthy, or in the proper circumstances to enable it to fulfil its functions with precision, to exercise its faculties with vigour. It is necessary that memory should faithfully delineate its anterior sensations, should accurately retrace its former ideas; to the end, that he may be competent to judge, to foresee the effects he may have to hope, the consequences he may have to fear, from those actions to which he may be determined by his will. If his organic system be vicious, if his interior or exterior organs be defective, whether by their natural conformation or from those causes by which they are regulated, he feels but imperfectly--in a manner less distinct than is requisite; his ideas are either false or suspicious, he judges badly, he is in a delusion, in a state of ebriety, in a sort of intoxication that prevents his grasping the true relation of things. In short, if his memory is faulty, if it is treacherous, his reflection is void, his imagination leads him astray, his mind deceives him, whilst the sensibility of his organs, simultaneously assailed by a crowd of impressions, shocked by a variety of impulsions, oppose him to prudence, to foresight, to the exercise of his reason. On the other hand, if the conformation of his organs, as it happens with those of a phlegmatic temperament, of a dull habit, does not permit him to move, except with feebleness, in a sluggish manner, his experience is slow, frequently unprofitable. The tortoise and the butterfly are alike incapable of preventing their destruction. The stupid man, equally with him who is intoxicated, are in that state which renders it impossible for them to arrive at or attain the end they have in view.