But while the general subject of psychology includes the consideration of the inner work ings of the mind, the processes of thought, the nature of feeling, and the Operation of the will, the special subject of Human Na ture is concerned only with the question of character, disposition, temperament, per sonal attributes, etc., of the individuals mak ing up the race of man. Psychology is gen eral — Human Nature is particular. Psychol ogy is more or less abstract — Human Nature is concrete. Psychology deals with laws, causes and principles — Human Nature deals with effects, manifestations, and expressions.