Logical consequence

“ As to the logical consequences of this conviction of mine, I may be permitted to remark that logical consequences are the scarecrows of fools and the beacons of wise men. ”

“ The same slovenliness of thought, and subjection of the reason to fears, wishes, and affections, which enable them to accept a theory involving a contradiction in terms, prevents them from perceiving the logical consequences of the theory. ”

“ In such cases it is an empirical law of the mind that reason discerns of itself the logical necessity, that is, if it desires to proceed according to the merits of the case, without, however, acting under physical constraint. ”

“ Thus, when we say that all men will die, and that all men are rational beings, and thence infer that some rational beings will die, the logical truth of this sentence is the same whether it be true or false that men are mortal and rational. ”

“ Those who dispute the theory are entitled to demand that it shall conform strictly to the general law of cause and effect, which is, that the effect shall occur with the cause, shall not occur without the cause, and shall bear some proportion to the cause. ”

“ From these circumstances we may gather how lately the more acute logical thinking, the strict discrimination of cause and effect has been developed, when our reasoning and understanding faculties still involuntarily hark back to those primitive forms of deduction, and when we pass about half our life in this condition. ”

“ Finally, formal logic, with its creed of absolute certitude, abhors the very mention of adventure and risk, the life blood of actual human thinking, which is aroused by doubts and questions, and proceeds by guesses, hypotheses, and experiments, to a decision which is always somewhat arbitrary and subject to the risk of later revision. ”

“ The deductive operation by which we derive the law of an effect from the laws of the causes, the concurrence of which gives rise to it, may be undertaken either for the purpose of discovering the law, or of explaining a law already discovered. The word explanation occurs so continually, and holds so important a place in philosophy, that a little time spent in fixing the meaning of it will be profitably employed.
An individual fact is said to be explained, by pointing out its cause, that is, by stating the law or laws of causation, of which its production is an instance. ”

“ Implied in every contrast of principle and fact, of rule and application, involved as we see after the event, most decisively when we react correctly upon a world incorrectly perceived, thought is yet not reflected on in the common experience. ”

“ And the only possible answer is that, whether true or false, it implies both a proposition as to the degree of goodness of the action in question, as compared with other things, and a number of causal propositions. For it cannot be denied that the action will have consequences: and to deny that the consequences matter is to make a judgment of their intrinsic value, as compared with the action itself. In asserting that the action is the best thing to do, we assert that it together with its consequences presents a greater sum of intrinsic value than any possible alternative. ”

“ The doctrine that the whole meaning of a conception expresses itself in practical consequences; consequences either in the shape of conduct to be recommended, or in that of experiences to be expected, if the conception be true; which consequences would be different, if it were untrue, and must be different from the consequences by which the meaning of other conceptions is in turn expressed. If a second conception should not appear to have other consequence, then it must be really only the first conception under a different name. ”

“ It is, that the effect was defeated, not in the absence, but in consequence of a counteracting cause, namely, a direct interposition of an act of the will of some being who has power over nature; and in particular of a Being, whose will being assumed to have endowed all the causes with the powers by which they produce their effects, may well be supposed able to counteract them. ”

“ To certain facts, certain facts always do, and, as we believe, will continue to, succeed. The invariable antecedent is termed the cause; the invariable consequent, the effect. And the universality of the law of causation consists in this, that every consequent is connected in this manner with some particular antecedent, or set of antecedents. ”

“ Armed with these logical weapons, we may boldly face Things in themselves, and tender to them the double alternative, sure that they must absolutely elect one or the other side, though we may be for ever precluded from discovering which. ”

“ Wherever, having nothing to guide us to the cause, we are obliged to set out from the effect, and to apply the rule of varying the circumstances to the consequents, not the antecedents, we are necessarily destitute of the resource of artificial experimentation. We can not, at our choice, obtain consequents, as we can antecedents, under any set of circumstances compatible with their nature. ”

“ Well, of two conceptions equally fit to satisfy the logical demand, that one which awakens the active impulses, or satisfies other æsthetic demands better than the other, will be accounted the more rational conception, and will deservedly prevail. ”

“ The difficulty of course lies in ascertaining the laws which are binding on all intelligence—the points which reason, considered simply as reason, and not as this or that particular reason—has in common. ”

“ Their ideal 'cause' was the totality of reality, identified with its 'effect,' in a meaningless tautology. Nothing but voluntarism can enable logicians to see that our actual procedure in knowing is the reverse of this, that causal explanation is the analysis of a continuum, and that 'phenomena,' 'events,' 'effects,' and 'causes' are all creations of our selective attention; that in selecting them we run a risk of analyzing falsely, and that if we do, our 'inductions' will be worthless. ”

“ We shall next advert to a rather more intricate operation of the same principle, namely, when the cause does not merely continue in action, but undergoes, during the same time, a progressive change in those of its circumstances which contribute to determine the effect. ”

“ Let us re-state the principle of causality as a universal and necessary law of thought. "All phenomena present themselves to us as the expression of POWER, and refer us to a causal ground whence they issue." ”

“ And in practice, that particular condition is usually styled the cause, whose share in the matter is superficially the most conspicuous, or whose requisiteness to the production of the effect we happen to be insisting on at the moment. So great is the force of this last consideration, that it sometimes induces us to give the name of cause even to one of the negative conditions. ”

“ Like causes produce like effects is a law of nature, but when the decision rests upon the judgment of man and depends upon his reason and his intellect, our common knowledge testifies that this law has no application. ”

“ The principle, however, overlooks the fact that, though everything that is actual is at the same time possible, the laws of logic forbid us to draw an inference in the opposite direction, from possibility to actuality. ”

“ The principle by which the Reflective faculty of Judgment regulates and arranges the products of animated nature is described as the End or final cause,—the notion in action, the universal at once determining and determinate in itself. ”

“ As a rule, when inquiring deliberately into the cause of an event, whether in nature or in history, we first reflect upon the circumstances of the case and compare it with similar ones previously investigated, and so are guided by a preconception more or less definite of 'what to look for,' what the cause is likely to be, that is, by an hypothesis. ”

“ Then you go away and say: "Every thing is like that wheel. If I investigated enough I should always find a man at a handle." And the man at the handle, or whatever corresponds to him, is henceforth known to you as "cause."
And so generally. When you have made out any sequence of events to your entire satisfaction, so that you know all about it, the laws involved being so familiar that you seem to see how the beginning must have been followed by the end, then you apply that as a simile to all other events whatever, and your idea of cause is determined by it. ”

“ This very law which the logicians would impose upon us—if I may give the name of logicians to those who would rule out all participation of our willing nature from the formation of our opinions—is based on nothing but their own natural wish to exclude all elements for which they, in their professional quality of logicians, can find no use. ”

“ At the threshold of this inquiry we are met by an objection, which, if not removed, would be fatal to the attempt to treat human conduct as a subject of science. Are the actions of human beings, like all other natural events, subject to invariable laws? Does that constancy of causation, which is the foundation of every scientific theory of successive phenomena, really obtain among them? ”

“ On an ultimate analysis it will be seen that the same outwardness of circumstances, on which is founded the content that the will finds to its hand, can alone account for the will giving its decision for the one and not the other of the two alternatives. ”

“ Since the laws of causes are as really fulfilled when the causes are said to be counteracted by opposing causes, as when they are left to their own undisturbed action, we must be cautious not to express the laws in such terms as would render the assertion of their being fulfilled in those cases a contradiction. ”

“ On the contrary, reasons of exactly the same sort and exactly as strong as those which lead us to suppose that everything has a cause, lead to the conclusion that if we choose one course, the result will always be different in some respect from what it would have been, if we had chosen another ”

“ Fallacies of cause occur in every hour of waking life. We attribute effects to wrong causes. We are especially liable to this from the fact that both cause and effect are conditions, and causation is a change of condition from an antecedent to a consequent. ”

“ But here the philosopher begins to be recalcitrant. You are not lowering my pretensions, he says, but attacking the power of man to attain truth upon any terms. All that is given to us in experience is the effect of underlying causes; if the causes vary the effects would vary; and, unless, therefore, you can get back to the cause, your knowledge must remain empirical and radically uncertain. ”

“ A consequence, good or bad, that is immediate and clearly apprehended, influences conduct far more potently than a consequence that has to be traced through a long chain of actions or influences, and, as eventually reached, is not a particular and {62} readily conceivable one, but a general and vaguely conceivable one. ”

“ This law is the Law of Causation. The truth, that every fact which has a beginning has a cause, is coextensive with human experience.
This generalization may appear to some minds not to amount to much, since after all it asserts only this: “it is a law, that every event depends on some law.” We must not, however, conclude that the generality of the principle is merely verbal; it will be found on inspection to be no vague or unmeaning assertion, but a most important and really fundamental truth. ”

“ Let us see how, in these special classes of cases, we shall succeed in verifying the natural presupposition of common sense, which regards error as possible only when our object is not wholly present to mind, and which assumes that a judgment can have an object that is yet only partially present to mind. In choosing the classes of cases, we shall first follow common sense as to their definition. We shall take just the assumptions of daily life, and shall show that they lead us into difficulty. We are not for the first bound to explain why these assumptions are made. ”

“ The mistake is of the more elementary character when the attempt to establish the laws of thought, or a general criterion, is made by help of the reasonings of a special science, for that of course must presuppose the general laws and the criterion. ”

“ The legal importance of the problem lies in the very potent fact that inferences and theories are often constructed which are formally or logically absolutely free of error, yet psychologically full of errors that no logic whatever could correct. ”

“ In life, again, we have ends to attain. And with regard to these we ponder which is the best way to secure them. The end here represents the universal or governing principle: and we have means and instruments whose action we regulate in conformity to the end. ”

“ To the universality which mankind are agreed in ascribing to the Law of Causation, there is one claim of exception, one disputed case, that of the Human Will; the determinations of which, a large class of metaphysicians are not willing to regard as following the causes called motives, according to as strict laws as those which they suppose to exist in the world of mere matter. ”