To the extreme, like Berkeley, Husserl does not come, but he joins to Hobbes and Berkeley in the thought, that meditation of the primary source, or the appearing, is the true source of knowing: “No conceivable theory can make us err with respect to the principle of all principles: that every originary presentive intuition is a legitimizing source of cognition, that everything originarily (so to speak, in its “personal” actuality) offered to us in “intuition” is to be accepted as what it is presented as being but also only within the limits in which it is presented there. We see indeed that each theory can only again draw its truth itself from originary data. Every statement which does no more than confer expression on such data by simple explication and by means of significations precisely conforming to them is, as we said at the beginning of this chapter actually an absolute beginning called upon to serve as a foundation a principium in the genuine sense of the word” [10, p. 44].

Along with that Husserl, in fact, if truth is adequate to what we call essence, considers that truth is unattainable in full, i.e. as the absolute: “The specific character of certain categories essences is such that essences belonging to them can be given only “onesidedly”, in a sequence “many-sidedly”, yet never “all– sidedly”” [10, p. 8].

Hume treats truth as compliance of thinking to sensations of the person: “We perceive only properties of those forces which are available to senses" [11, p. 22]; “They are the successive perceptions only, that constitute the mind; nor have we the most distant notion of in place, where these scenes are represented, or of the materials, of which it is composed” [11, p. 253].

In its considerations Hume accurately catches that circumstance that primordial source of Whole for human consciousness are namely sensations. In this respect he is quite right, because it is through the senses information comes into control centers of consciousness of the person. Hume also is right in his doubt about existence and qualities of the things which are beyond the senses. Here he is certainly consistent in their views and findings, and differs from other thinkers in that does not take the responsibility to determine aught unknown to him, to speculate on the basis which is impenetrable for him.

However, Hume, like most of thinkers, concentrates the attention not on consciousness, and on the person, and this circumstance, naturally, leads him to not quite adequate conclusions: "… on what base we should think that the same forces will be always combined with the same felt qualities. Therefore, the principal in life is not the mind, but a habit. Only it forces mind in all cases to assume that the future corresponds to the past. How easy did not seem this step, mind never for all eternity would not be able to make it" [11, p. 22]

One can hardly argue with Hume that experience, the habit generated on its basis that is an important factor in human life, the more that Hume rightly pointed out existence of many unknown to us Forces that involves for the person a support preferably on known and clear to him.

Nevertheless, here Hume pulls together the highest consciousness inherent in the person, with the lowest consciousness, belonging to the living beings without self-consciousness. The living beings without self-consciousness really only adapts to the environment by trial and error, accumulating over many generations of genetic memory that allows them to coexist satisfactorily with the environment and to struggle with competitors on the basis of accumulated experiences and genetic memory. But all this doesn't allow living beings without self-consciousness to raise above the environment – in a result, essential change of the environment leads to death of the whole types.