There is no other law under which it is conceivable that we can act. VII. It follows from this system, again, that no individual can make an effort to change the habitual character of his volitions,--and of course cannot resist his passions, or introduce any intellectual or moral discipline other than that in which he is actually placed, or undertake any enterprise that shall be opposite to the one in which he is engaged, or not part or consequent of the same. If he effect any change directly in the habitual character of his volitions, he must do it by a volition; that is, he must will different from his actual will,--his will must oppose itself in its own act: but this is absurd, the system itself being judge. As, therefore, the will cannot oppose itself, a new volition can be obtained only by presenting a new motive; but this is equally impossible. To present a new motive is to call up new objects and circumstances in relation to the actual state of the mind, touching upon some principles which had been slumbering under the habitual volitions; or the state of the mind itself must be changed in relation to the objects now before it; or a change must take place both of subject and object, for the motive lies in the correlation of the two. But the volition to call up new objects and circumstances in relation to some principle of the mind that had been slumbering,--for example, fear, must itself have a motive; but the motive to call up objects of fear must preexist; if it exist at all. If it preexist, then of necessity the volition to call up objects of fear will take place; and, it will not be a change effected by the man himself, out of the actually existing state of mind and objects. If there be no such motive pre-existing, then it would become necessary to present a new motive, to cause the choice of objects of fear; and here would be a recurrence of the original difficulty,--and so on, ad infinitum. If the problem be to effect a change in the state of the mind in relation to existing objects, in the first place, this cannot be effected by a direct act of will, for the act of will is caused by the state of mind, and this would be an effect changing or annihilating its cause.