Part 7

The theses in these four antinomies constitute the teaching of philosophical dogmatism. The antitheses constitute doctrines of philosophical empiricism.

IV.--Criticism of the Chief Arguments for the Existence of God

The ontological argument aims at asserting the possibility of conceiving the idea of an ens realissimum, of being possessed of all reality. But the idea of existence and the fact of existence are two very different things. Whatever I conceive, or sensibly imagine, I necessarily conceive as though it were existing. Though my pocket be empty, I may conceive it to contain a "hundred thalers." If I conceive them there, I can only conceive them as actually existing there. But, alas, the fact that I am under this necessity of so conceiving by no means carries with it a necessity that the coins should really be in my pocket. That can only be determined by experience.

The cosmological argument contends that if anything exists, there must also exist an absolutely necessary being. Now, at least I myself exist. Hence there exists an absolutely necessary being. The argument coincides with that by which the thesis of the fourth antinomy is supposed. The objections to it are summed up in the proof of the antithesis of the fourth antimony. As soon as we have recognised the true conception of causality, we have already transcended the sensible world.

The physico-theological or teleological argument is what is often styled the argument from design. It proceeds not from general, but particular experience. Nature discloses manifold signs of wise intention and harmonious order, and these are held to betoken a divine designer. This argument deserves always to be treated with respect. It is the oldest and clearest of all proofs, and best adapted to convince the reason of the mass of mankind. It animates us in our study of nature. And it were not only a cheerless, but an altogether vain task to attempt to detract from the persuasive authority of this proof. There is nought to urge against its rationality and its utility.

All arguments, however, to prove the existence of God must, in order to be theoretically valid, start from specifically and exclusively sensible or phenomenal data, must employ only the conceptions of pure physical science, and must end with demonstrating in sensible experience an object congruous with, or corresponding to, the idea of God. But this requirement cannot be met, for, scientifically speaking, the existence of an absolutely necessary God cannot be either proved or disproved. Hence room is left for faith in any moral proofs that may present themselves to us, apart from science. With this subject ethics, the science of practice or of practical reason, will have to deal.

The Critique of Practical Reason

Kant's "Critique of Practical Reason" ("Kritik der praktischen Vernunft"), published in 1788, is one of the most striking disquisitions in the whole range of German metaphysical literature. One of its paragraphs has alone sufficed to render it famous. The passage concerning the starry heavens and the moral law as the two transcendently overwhelming phenomena of the universe is, perhaps, more frequently quoted than any other written by a German author. This is the treatise which forms the central focus of Kant's thinking. It stands midway between the "Critique of Pure Reason" and the "Critique of Judgment." Herein Kant takes up the position of a vindicator of the truth of Christianity, approaching his proof of its validity and authority by first establishing positive affirmations of the immortality of the soul and the existence of God. It also includes a theory of happiness, and an argument concerning the summum bonum of life, the special aim being to demonstrate that man should not simply seek to be happy, but should, by absolute obedience to the moral law, seek to become worthy of that happiness which God can bestow.

I.--Analytic of Practical Reason

Practical principles are propositions containing a general determination of the will. They are maxims, or subjective propositions, when expressing the will of an individual; objective, when they are valid expressions of the will of rational beings generally.

Practical principles which pre-suppose an object of desire are empirical, or experimental, and supply no practical laws. Reason, in the scope of a practical law, influences the will not by the medium of pleasure or pain. All rational beings necessarily wish for happiness, but they are not all agreed either as to the means to attain it, or as to the objects of their enjoyment of it. Thus, subjective practical principles can only be reckoned as maxims, never as law.

A rational being ought not to conceive that his individual maxims are calculated to constitute universal laws, and to become the basis of universal legislation. To discover any law which would bring all men into harmony is absolutely impossible.

One of the problems of practical reason is to find the law which can necessarily determine the will, assuming that the will is free. The solution of this problem is to be found in action according to the moral law. We should so act that the maxim of our will can always be valid as a principle of universal legislation. Experience shows how the moral consciousness determines freedom of the will.

Suppose that someone affirms of his inclination for sensual pleasure that he cannot possibly resist temptation to indulgence. If a gallows were erected at the place where he is tempted, on which he should be hanged immediately after satiating his passions, would he not be able to control his inclination? We need not long doubt what would be his answer.

But ask him, if his sovereign commanded him to bear false witness against an honourable man, under penalty of death, whether he would hold it possible to conquer his love of life. He might not venture to say what he would choose, but he would certainly admit that it is possible to make choice. Thus, he judges that he can choose to do a thing because he is conscious of moral obligation, and he thus recognises for himself a freedom of will of which, but for the moral law, he would never have been conscious.

We obtain the exact opposite of the principle of morality if we adopt the principle of personal private happiness as the determining motive of the will. This contradiction is not only logical, but also practical. For morality would be totally destroyed were not the voice of reason as clear and penetrating in relation to the will, even to the most ordinary men.

If one of your friends, after bearing false witness against you, attempted to justify his base conduct by enumerating the advantages which he had thus secured for himself and the happiness he had gained, and by declaring that thus he performed a true human duty, you would either laugh him to scorn or turn from him in horror. And yet, if a man acts for his own selfish ends, you have not the slightest objection to such behaviour.

MORALITY AND HAPPINESS

The maxim of self-love simply advises; the law of morality commands. There is a vast difference between what we are advised and what we are obliged to do. No practical laws can be based on the principle of happiness, even on that of universal happiness, for the knowledge of this happiness rests on merely empirical or experimental data, every man's ideas of it being conditioned only on his individual opinion. Therefore, this principle of happiness cannot prescribe rules for all rational beings.

But the moral law demands prompt obedience from everyone, and thus even the most ordinary intelligence can discern what should be done. Everyone has power to comply with the dictates of morality, but even with regard to any single aim it is not easy to satisfy the vague precept of happiness. Nothing could be more absurd than a command that everyone should make himself happy, for one never commands anyone to do what he inevitably wishes to do. Finally, in the idea of our practical reason, there is something which accompanies the violation of a moral law--namely, its demerit, with the consciousness that punishment is a natural consequence. Therefore, punishment should be connected in the idea of practical reason with crime, as a consequence of the crime, by the principles of moral legislation.

ANALYSIS OF PRINCIPLES

The practical material principles of determination constituting the basis of morality may be thus classified.

1. Subjective

External: Education; the civil constitution. Internal: Physical feeling; moral feeling.

2. Objective

Internal: Perfection. External: Will of God.

The subjective elements are all experimental, or empirical, and cannot supply the universal principle of morality, though they are expounded in that sense by such writers as Montaigne, Mandeville, Epicurus, and Hutcheson.

But the objective elements, as enunciated and expounded by Wolf and the Stoics, and by Crusius and other theological moralists, are founded on reason, for absolute perfection as a quality of things (that is, God Himself) can only be thought of by rational concepts.