In the last two decades the tendency to review the fundamental principles of European metaphysics is enhanced. We can see a growing number of philosophers which offer to abandon the traditional ideas lying in the basis of thinking about Being. For instance, Alain Badiou in his treatise “Being and Event” declares that the Unity does not exist. Contemporary philosopher Quentin Meillassoux in his book “After Finitude: An Essay On The Necessity Of Contingency” proposes to reconsider the concept of the absolute by changing its meaning. Absolute is not an absolute being, a substance which possesses the characteristics of eternity, immutability, and of the lack of beginning. It is the opportunity to be different, the possibility of transition to another state without any foundation. One can see the rejection from the substantial understanding and appeal to Absolute as to the necessity of thinking the impossibility of the necessary being. So there is a substitution of the absolute meaning of being in the concept belonging to completely different categories – the categories of modality. Now we are talking not about the being but about the impossibility of the person to think that one what before, in dogmatic ontology, was considered as absolute. Now we are told about the principle which must obey the thinking and which restricts the consideration of Absolute taking in the sense of substantial principle. This is a new kind of dogmatism which nothing changes in the ontology: the idea of absolute Beginning is retained as the background on which some thinkers attempt to substitute the fundamental notions of ontology for the new concepts and theories.