Lenin: Is there objective truth? Part two

Statue of David Hume by Alexander Stoddart, 1995, bronze, in front of High Court Building, Edinburgh, Scotland

The question arises, does this denial of objective truth belong personally to Bogdanov, who refuses to own himself a Machist, or does it follow from the fundamental teachings of Mach and Avenarius? The latter is the only possible answer to the question. If only sensation exists in the world (Avenarius in 1876), if bodies are complexes of sensations (Mach, in the Analysis of Sensations), then we are obviously confronted with a philosophical subjectivism which inevitably leads to the denial of objective truth. And if sensations are called “elements” which in one connection give rise to the physical and in another to the psychical, this, as we have seen, only confuses but does not reject the fundamental point of departure of empirio-criticism. Avenarius and Mach recognise sensations as the source of our knowledge. Consequently, they adopt the standpoint of empiricism (all knowledge derives from experience) or sensationalism (all knowledge derives from sensations). But this standpoint gives rise to the difference between the fundamental philosophical trends, idealism and materialism and does not eliminate that difference, no matter in what “new” verbal garb (“elements”) the standpoint is clothed. Both the solipsist, that is, the subjective idealist, and the materialist may regard sensations as the source of our knowledge. Both Berkeley and Diderot started from Locke. The first premise of the theory of knowledge undoubtedly is that the sole source of our knowledge is sensation. Having recognised the first premise, Mach confuses the second important premise, i.e., regarding the objective reality that is given to man in his sensations, or that forms the source of man’s sensations. Starting from sensations, one may follow the line of subjectivism, which leads to solipsism (“bodies are complexes or combinations of sensations”), or the line of objectivism, which leads to materialism (sensations are images of objects, of the external world). For the first point of view, i.e., agnosticism, or, pushed a little further, subjective idealism, there can be no objective truth. For the second point of view, i.e., materialism, the recognition of objective truth is essential. This old philosophical question of the two trends, or rather, of the two possible deductions from the premises of empiricism and sensationalism, is not solved by Mach, it is not eliminated or overcome by him, but is muddled by verbal trickery with the word “element”, and the like. Bogdanov’s denial of objective truth is an inevitable consequence of Machism as a whole, and not a deviation from it.

Engels in his Ludwig Feuerbach calls Hume and Kant philosophers “who question the possibility of any cognition, or at least of an exhaustive cognition, of the world”. Engels, therefore, lays stress on what is common both to Hume and Kant, and not on what divides them. Engels states further that “what is decisive in the refutation of this [Humean and Kantian] view has already been said by Hegel” (4th Germ. ed., pp. 15–16).1 In this connection it seems to me not uninteresting to note that Hegel, declaring materialism to be “a consistent system of empiricism,” wrote: “For empiricism the external (das Äusserliche) in general is the truth, and if then a supersensible too be admitted, nevertheless knowledge of it cannot occur (soll doch eine Erkenntnis desselben [d. h. des Uebersinnlichennicht stattfinden können) and one must keep exclusively to what belongs to perception (das der Wahrnehmung Angehörige). However, this principle in its realisation (Durchführung) produced what was subsequently termed materialism. This materialism regards matter, as such, as the truly objective (das wahrhaft Objektive).”(Hegel, Encyklopädie der philosophischen Wissenschaften im Grundrisse [Encyclopaedia of the Philosophical Sciences in Outline], Werke, VI. Band [1843], S. 83. Cf. S. 122).

All knowledge comes from experience, from sensation, from perception. That is true. But the question arises, does objective reality “belong to perception,” i.e., is it the source of perception? If you answer yes, you are a materialist. If you answer no, you are inconsistent and will inevitably arrive at subjectivism, or agnosticism, irrespective of whether you deny the knowability of the thing-in-itself, or the objectivity of time, space and causality (with Kant), or whether you do not even permit the thought of a thing-in-itself (with Hume). The inconsistency of your empiricism, of your philosophy of experience, will in that case lie in the fact that you deny the objective content of experience, the objective truth of knowledge through experience.

Those who hold to the line of Kant or Hume (Mach and Avenarius are among the latter, in so far as they are not pure Berkeleians) call us, the materialists, “metaphysicians” because we recognise objective reality which is given us in experience, because we recognise an objective source of our sensations independent of man. We materialists follow Engels in calling the Kantians and Humeans agnostics, because they deny objective reality as the source of our sensations. Agnostic is a Greek word: a in Greek means “no,” gnosis “knowledge.” The agnostic says: I do not know if there is an objective reality which is reflected, imaged by our sensations; I declare there is no way of knowing this (see the words of Engels above quoted setting forth the position of the agnostic). Hence the denial of objective truth by the agnostic, and the tolerance – the philistine, cowardly tolerance – of the dogmas regarding sprites, hobgoblins, Catholic saints, and the like. Mach and Avenarius, pretentiously advancing a “new” terminology, a supposedly “new” point of view, repeat, in fact, although in a confused and muddled way, the reply of the agnostic: on the one hand, bodies are complexes of sensations (pure subjectivism, pure Berkeleianism); on the other hand, if we re-christen our sensations “elements”, we may think of them as existing independently of our sense-organs!

V.I.Lenin, Materialism and Empirio-Criticism: Critical Comments on a Reactionary Philosophy, 1908, Progress Publishers, Moscow, 1975, pp. 107-115



1. See F. Engels, Ludwig Feuerbach and the End of Classical German Philosophy (K. Marx and F. Engels, Selected Works, Volume II, Moscow, 1958, p. 371).

Part two/to be continued…

Lenin: Empirio-criticism and historical materialism – part eight


Parties in Philosophy and Philosophical Blockheads (continued)

Once you deny objective reality, given us in sensation, you have already lost every weapon against fideism, for you have slipped into agnosticism or subjectivism – and that is all that fideism requires. If the perceptual world is objective reality, then the door is closed to every other “reality” or quasi-reality (remember that Bazarov believed the “realism” of the immanentists, who declare God to be a “real concept”). If the world is matter in motion, matter can and must be infinitely studied in the infinitely complex and detailed manifestations and ramifications of this motion, the motion of this matter; but beyond it, beyond the “physical”, external world, with which everyone is familiar, there can be nothing. And the hostility to materialism and the torrents of slander against the materialists are all in the order of things in civilised and democratic Europe. All this is going on to this day. All this is being concealed from the public by the Russian Machists, who have not once attempted even simply to compare the attacks made on materialism by Mach, Avenarius, Petzoldt and Co., with the statements made in favour of materialism by Feuerbach, Marx, Engels and J. Dietzgen. …

A single claw ensnared, and the bird is lost. And our Machists have all become ensnared in idealism, that is, in a diluted, subtle fideism; they became ensnared from the moment they took “sensation” not as an image of the external world but as a special “element”. It is nobody’s sensation, nobody’s mind, nobody’s spirit, nobody’s will – this is what one inevitably comes to if one does not recognise the materialist theory that the human mind reflects an objectively real external world.

V.I.Lenin, Materialism and Empirio-criticism: Critical Comments on a Reactionary Philosophy, Progress Publishers, Moscow, 1975, 323-325


Part eight/to be continued…

Full text at Marxists Internet Archive

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Lenin: the recent revolution in natural science, and philosophical idealism – part nine

Spin up of a super-massive black hole

Spin up of a super-massive black hole

“Matter has disappeared” (continued)

…the new physics wavers unconsciously and instinctively between dialectical materialism, which remains unknown to the bourgeois scientists, and “phenomenalism”, with its inevitable subjectivist (and, subsequently, directly fideist) deductions.

…however much both Rey and the physicists of whom he speaks abjure materialism, it is nevertheless beyond question that mechanics was a copy of real motions of moderate velocity, while the new physics is a copy of real motions of enormous velocity. The recognition of theory as a copy, as an approximate copy of objective reality, is materialism. When Rey says that among modern physicists there “is a reaction against the conceptualist [Machist] and energeticist school”, and when he includes the physicists of the electron theory among the representatives of this reaction (46), we could desire no better corroboration of the fact that the struggle is essentially between the materialist and the idealist tendencies. But we must not forget that, apart from the general prejudices against materialism common to all educated philistines, the most outstanding theoreticians are handicapped by a complete ignorance of dialectics.

V.I.Lenin, Materialism and Empirio-criticism: Critical Comments on a Reactionary Philosophy, Progress Publishers, Moscow, 1975, 243-246


Part nine/to be continued…

Full text at Marxists Internet Archive

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