Intension

“ In the public mind—or rather, in the mind of that part of the public which think of the matter at all—there seems to be an idea that "Force" is something of the nature of an entity, separate from Substance or Mind—something that pounces down upon Substance and drives it along by presence from without. ”

“ Now, Induction is mainly a process for finding the causes of effects: and in attempting to fathom the mode of tracing causes and effects in physical science, I soon saw that in the more perfect of the sciences, we ascend, by generalization from particulars, to the tendencies of causes considered singly, and then reason downward from those separate tendencies, to the effect of the same causes when combined. I then asked myself, what is the ultimate analysis of this deductive process; the common theory of the syllogism evidently throwing no light upon it. ”

“ Induction, then, is that operation of the mind, by which we infer that what we know to be true in a particular case or cases, will be true in all cases which resemble the former in certain assignable respects. In other words, Induction is the process by which we conclude that what is true of certain individuals of a class is true of the whole class, or that what is true at certain times will be true in similar circumstances at all times. ”

“ Rule of Agreement: "If, whenever a given object or agency is present, without counteracting forces, a given effect is produced, there is a strong evidence that the object or agency is the cause of the effect." ”

“ Whether, therefore, there be resistance or no resistance, the endeavour will still be the same. For simply to endeavour is to go. But when two bodies, having opposite endeavours, press one another, then the endeavour of either of them is that which we call pressure, and is mutual when their pressures are opposite. ”

“ This change we ascribe to some force exercised by the one which the other has not exercised. And we have no alternative but to do this, or to assert that the change had no antecedent; which is to deny the persistence of force. Whence it is further manifest that what we regard as the objective unlikeness is the presence in the one of some force, or set of forces, not present in the other—something in the kinds or amounts or directions of the constituent forces of the one, which those of the other do not parallel. ”

“ They were to carry with them a double force—a force of coercion, visible and palpable; a force addressed to conscience, neither visible nor palpable, and in its nature only capable of being inwardly appreciated. ”

“ Knowledge of our circumstances.—We may estimate our forces but not our force. Circumstances do not only conceal it from and show it to us—nay, they even exaggerate and diminish it. We ought to consider ourselves variable quantities whose active power may, under specially favourable circumstances, become equivalent to that of the highest order. We ought, therefore, to weigh the circumstances, and spare no effort in studying them. ”

“ Now permit me to illustrate the principle of induction. You understand, when electric conditions are produced, that there is such a thing as causing them by induction. You understand that negative attracts positive, and that positive attracts negative—that where these opposite conditions prevail there is a tendency to bring them together. ”

“ Yet the doctrine that this is so, as well as the law of the force, were established only by this and the like demonstrations. The doctrine which is the hypothesis of the deductive reasoning, is the inference of the inductive process. The special facts which are the basis of the inductive inference, are the conclusion of the train of deduction. And in this manner the deduction establishes the induction. The principle which we gather from the facts is true, because the facts can be derived from it by rigorous demonstration. Induction moves upwards, and deduction downwards, on the same stair. ”

“ We have, therefore, the warrant of a rigid induction for considering it probable, in a degree undistinguishable from certainty, that the known conditions requisite for the sun's rising will exist to-morrow. ”

“ It is evident, therefore, that each force has had, during each instant, all the effect which belonged to it; and that the modifying influence which one of two concurrent causes is said to exercise with respect to the other may be considered as exerted not over the action of the cause itself, but over the effect after it is completed. ”

“ The process of induction is a logical system of forming conclusions from the special to the general, by which we advance from many individual experiences to a general law; deduction, on the other hand, draws a conclusion from the general to the special, from a general law of nature to an individual case. ”

“ An act of volition, whether followed by an effect or not, is accompanied by a consciousness of effort, "of force exerted, of power in action, which is necessarily causal, or causative." This feeling of energy or force, inherent in an act of will, is knowledge a priori; assurance, prior to experience, that we have the power of causing effects. ”

“ Now, while fully accepting the logical definition of cause as the "antecedent or concurrence of antecedents on which the effect is invariably and unconditionally consequent," we can always single out one dynamical—antecedent the power which does the work—from the aggregate of material conditions under which that power may be distributed and applied. ”

“ Inasmuch as in the given circumstances we are at the same time the commanding AND the obeying parties, and as the obeying party we know the sensations of constraint, impulsion, pressure, resistance, and motion, which usually commence immediately after the act of will ”

“ By the persistence of force is meant the principle—one now established with so much certainty as to command the assent of every thinking man who examines the subject—that in the ordinary course of nature no force is either ever originated or ever destroyed, but only changed in form. ”

“ As a matter of fact, instincts may be acquired in many ways, as, for instance, through the action of fear, hope, law, religion, training, and even of imitation. A generalization which would include far the greater part of these causes is one I have already frequently used—that of the working of society. ”

“ The fourth division of power or influence is doing, or being done by, well or ill; thus we can become ill or be educated, be restored to health and the like. Power, then, is either in the mind, or the body, or in armies and resources, or in acting and being acted upon. ”

“ We can reason about a line as if it had no breadth; because we have a power, which is the foundation of all the control we can exercise over the operations of our minds; the power, when a perception is present to our senses, [Pg 22] or a conception to our intellects, of attending to a part only of that perception or conception, instead of the whole. ”

“ We may, therefore, define an instrumental cause as one which, when acting as an instrument, produces the effect not by virtue of its inherent power alone, but by virtue of a power communicated to it by some principal cause which acts through it. A principal cause, on the other hand, is one which produces its effect by virtue of an active power permanently inherent in itself. ”

“ It is necessary to proceed by observation, by experiment, and then by induction, but with prodigious mistrust of induction. Induction consists in drawing conclusions from the particular to the general, from a certain number of facts to a law. ”

“ Of Induction, therefore, we shall say no more at present, than that it at least is, without doubt, a process of real inference. The conclusion in an induction embraces more than is contained in the premisses. The principle or law collected from particular instances, the general proposition in which we embody the result of our experience, covers a much larger extent of ground than the individual experiments which are said to form its basis. ”

“ I possess an internal force, it is true, a force which, under proper control, overpowers and subdues the material, and by exerting this I can, if I think it well to do so, release your soul, that inner intelligence which, deprived of its mundane matter, is yourself, from its house of clay and allow it a brief interval of freedom. ”

“ Spencer or any one else deny that, whatever sanction the human and relative conception of "power" draws from the inner certainties of our own sensations, that same, or a still higher, sanction can also be claimed for the conception of an infinite and eternal "Wisdom"? ”

“ But now if things or parts of things which we call different, are those of which the constituent forces differ in one or more respects; what must happen to any like forces, or any uniform force, falling on them? Such like forces, or parts of a uniform force, must be differently modified. ”

“ Such a tangible defence of what we hold, inadequate as it necessarily is, considered as an analysis of our ratiocination in its length and breadth, nevertheless is in such sense associated with our holdings, and so fortifies and illustrates them, that it acts as a vivid apprehension acts, giving them luminousness and force. Thus inference becomes a sort of symbol of assent, and even bears upon action. ”

“ It will be insinuated to us with a plausible affectation of wisdom and concern, how prudent it is to please the powerful—how dangerous to provoke them—and then comes in the perpetual incantation, that freezes up every generous purpose of the soul, in cold—inactive—expectation "that if there is any request to be made, compliance will obtain a favourable attention." ”

“ Nevertheless, we would leave to the syllogism, and such celebrated and applauded demonstrations, their jurisdiction over popular and speculative acts; while, in everything relating to the nature of things, we make use of induction for both our major and minor propositions ; for we consider induction as that form of demonstration which closes in upon nature and presses on, and, as it were, mixes itself with action. ”

“ Who shall set a limit to the influence of a human being? ”

“ We, however, call the more abundant mass of ideas ourselves; and, talking of its effort as our effort, and of that of the smaller mass of ideas as the resistance, [500] we say that our effort sometimes overcomes the resistances offered by the inertias of an obstructed, and sometimes [Pg 576] those presented by the impulsions of an explosive, will. Really both effort and resistance are ours, and the identification of our self with one of these factors is an illusion and a trick of speech. ”

“ Finally the very form of induction itself must be new. "The induction which is to be available for the discovery and demonstration of sciences and arts must analyse nature by proper rejections and exclusions; and then, after a sufficient number of negatives, come to a conclusion on the affirmative instances, which has not yet been done, or even attempted, save only by Plato. ”

“ The ideal impulse appears, in comparison with this, a still small voice which must be artificially reinforced to prevail. Effort is what reinforces it, making things seem as if, while the force of propensity were essentially a fixed quantity, the ideal force might be of various amount. But what determines the amount of the effort when, by its aid, an ideal motive becomes victorious over a great sensual resistance? The very greatness of the resistance itself. ”

“ Adherence to rigid order, and unconditional obedience to reasonable demands, and a mild discipline, with strict control, and a regular system by which one was set to watch another, were the means used for arousing to the utmost a spirit of emulation and giving a sharp spur to ambition. ”

“ Among Prerogative Instances I will put in the third place Striking Instances, of which I have made mention in the First Vintage concerning Heat, and which I also call Shining Instances, or Instances Freed and Predominant. They are those which exhibit the nature in question naked and standing by itself, and also in its exaltation or highest degree of power; as being disenthralled and freed from all impediments, or at any rate by virtue of its strength dominant over, suppressing and coercing them. ”

“ But when we go over from the region of inert, passive matter, into that which is full of spiritual vigour and unceasing activity, and apply this maxim here in all its rigour, we do make a most unwarrantable extension of it. ”

“ Hence it happens that if an individual is placed 464permanently in conditions which demand more action of a special kind than has before been requisite, or than is natural to him—if the pressure of the painful feelings which these conditions entail when disregarded, impels him to perform this action to a greater extent—if by every more frequent or more lengthened performance of it under such pressure, the resistance is somewhat diminished ”

“ The Methods of Induction which are treated of in this and the preceding chapter, and which are specially applicable to causes governed by relations of Quantity or of Resemblance, commonly lead us to Laws of Phenomena only. Inductions founded upon other ideas, those of Substance and Cause for example, appear to conduct us somewhat further into a knowledge of the essential nature and real connexions of things. ”

“ He maintains that force is the cause of extension, meaning by that that the sensation of extension is a modification of our sensibility, occasioned by forces analogous to those which produce sensations of a more complex kind. ”

“ But these are only manifestations of that natural property of matter, inertia, which causes it to consider every effort, even if it be necessary and salutary, as unpleasant for the moment, and the apparent discontent with the compulsion to effort, can never be accepted as a proof against its usefulness. ”