In the seventh chapter I have shown that, in the theoretical sphere, procedure based upon _conceptions_ suffices for mediocre achievements only, while great achievements, on the other hand, demand that we should draw from perception itself as the primary source of all knowledge. In the practical sphere, however, the converse is the case. Here determination by what is perceived is the way of the brutes, but is unworthy of man, who has _conceptions_ to guide his conduct, and is thus emancipated from the power of what is actually perceptibly present, to which the brute is unconditionally given over. In proportion as a man makes good this prerogative his conduct may be called _rational_, and only in this sense can we speak of _practical reason_, not in the Kantian sense, the inadmissibility of which I have thoroughly exposed in my prize essay on the foundation of morals. It is not easy, however, to let oneself be determined by _conceptions_ alone; for the directly present external world, with its perceptible reality, intrudes itself forcibly even on the strongest mind. But it is just in conquering this impression, in destroying its illusion, that the human spirit shows its worth and greatness. Thus if incitements to lust and pleasure leave it unaffected, if the threats and fury of enraged enemies do not shake it, if the entreaties of erring friends do not make its purpose waver, and the delusive forms with which preconcerted plots surround it leave it unmoved, if the scorn of fools and of the vulgar herd does not disturb it nor trouble it as to its own worth, then it seems to stand under the influence of a spirit-world, visible to it alone (and this is the world of conceptions), before which that perceptibly present world which lies open to all dissolves like a phantom. But, on the other hand, what gives to the external world and visible reality their great power over the mind is their nearness and directness. As the magnetic needle, which is kept in its position by the combined action of widely distributed forces of nature embracing the whole earth, can yet be perturbed and set in violent oscillation by a small piece of iron, if only it comes quite close to it, so even a great mind can sometimes be disconcerted and perturbed by trifling events and insignificant men, if only they affect it very closely, and the deliberate purpose can be for the moment shaken by a trivial but immediately present counter motive. For the influence of the motives is subject to a law which is directly opposed to the law according to which weights act on a balance, and in consequence of it a very small motive, which, however, lies very near to us, can outweigh one which in itself is much stronger, but which only affects us from a distance. But it is this quality of the mind, by reason of which it allows itself to be determined in accordance with this law, and does not withdraw itself from it by the strength of actual practical reason, which the ancients denoted