stem of knowledge, he wrote: ???I studied the material of his texts; and I know: being in contact with them is the most immense work which requires one to distinctly reveal his methodology (emphasis G.A.B.), his epistemology; in them with unexampled, logically unassailable daring we have been given a basis (emphasis G.A.B.) of an enormous system.??? And further: ???A new page of his activity: the