This well-conceived, theoretical and clinical presentation of the energetic and dynamic aspects of 'counter-intelligence' demonstrates its applicability in obsessive-compulsive thinking, inductive and deductive reasoning, and in psychotic patients. Different components and intellectual functions are discussed and elaborated on in connection with 'counter-intelligence'. This article is so compact, so well-reasoned, and the clinical cases so graphic, it is impossible to do justice to the author with a mere summary. It deserves to be read.