Posthumously published, this series of papers on the theory of behaviour written by a teacher and psychologist, seems to us of purely professional appeal, for educators, psychologists, etc. -- and at that, limited. Lecky believes and developed the premise that personality is organized, scientifically, as a constant striving for unity -- that man's actions are predictable and congruent, and that changes, conflicts in personality are outside the sphere of its goal -- homogeneity. This theory in itself, refutes the technique of psychoanalysis -- psychiatry, etc.