 It is a great pity that this is just one of a multi-volume work, all of the rest have as yet not been discovered.The work opens with a preface and proceeds with thirty-three ‘lessons’ ("lezioni") organised in four sections, of which the first serves as a general introduction.The other sections deal successively with general metaphysics, special metaphysics, and moral philosophy

Debono insists on the central importance which concepts should have within the framework of ‘erudite philosophy’, and hence within the methods used to have understanding and acquire sure knowledge.