Man's will frequently fluctuates between two objects, of which either the presence or the ideas move him alternately: he waits until he has contemplated the objects or the ideas they have left in his brain; which solicit him to different actions; he then compares these objects or ideas: but even in the time of deliberation, during the comparison, pending these alternatives of love and hatred, which succeed each other sometimes with the utmost rapidity, he is not a free agent for a single instant; the good or the evil which he believes he finds successively in the objects, are the necessary motives of these momentary wills; of the rapid motion of desire or fear that he experiences as long as his uncertainty continues. From this it will be obvious, that deliberation is necessary; that uncertainty is necessary; that whatever part he takes, in consequence of this deliberation, it will always necessarily be that which he has judged, whether well or ill, is most probable to turn to his advantage. When the soul is assailed by two motives that act alternately upon it, or modify it successively, it deliberates; the brain is in a sort of equilibrium, accompanied with perpetual oscillations, sometimes towards one object, sometimes towards the other, until the most forcible carries the point, and thereby extricates it, from this state of suspense, in which consists the indecision of his will. But when the brain is simultaneously assailed by causes equally strong, that move it in opposite directions; agreeable to the general law of all bodies, when they are struck equally by contrary powers, it stops, it is in _nisu_; it is neither capable to will nor to act; it waits until one of the two causes has obtained sufficient force to overpower the other, to determine its will, to attract it in such a manner that it may prevail over the efforts of the other cause.