We must, first of all, take account of this difficulty when we use the expression or the formula "materialistic conception of history." Many have imagined, do imagine, and will imagine that it is possible and convenient to penetrate into the sense of the phrase by the simple analysis of the words which compose it instead of arriving at it from the context of an explanation, from the genetic study of the formation of the doctrine,[28] or from the polemical writings in which its partisans refute the objections of its opponents. Verbalism tends always to shut itself up in purely formal definitions; it gives rise in the minds to this erroneous belief, that it is an easy thing to reduce into terms and into simple and palpable expressions the agitated and immense _complexus_ of nature and history and that it is easy to picture the multiform and complicated interlacings of causes and effects; in clearer terms, it obliterates the meaning of the problems because it sees in them nothing but questions of nomenclature. If, moreover, it then happens that verbalism finds a support in certain theoretical hypotheses, for example, that _matter_ indicates something which is below or opposed to another higher or nobler thing which is called spirit; or if it happens to be at one with that literary habit which opposes the word materialism, understood in a disparaging sense, to all that, in a word, is called idealism, that is to say, to the sum total of the anti-egoistic inclinations and acts; then our embarrassment is extreme! Then we are told that in this doctrine it is attempted to explain the whole of man by the mere calculation of his material interests and that no value whatever is allowed to any ideal interest. The inexperience, the incapacity and the haste of certain partisans and propagandists of this doctrine have also been a cause of these confusions. In their eagerness to explain to others what they themselves only half understand, at a time when the doctrine itself is only in its beginnings and still has need of many developments, they have believed they could apply it, such as it was, to whatever historic fact they were considering, and they have almost reduced it to tatters, exposing it thus to the easy criticism and the ridicule of people on the watch for scientific novelties, and other idle persons of the same type.