CHAPTER IV1 THE CHARACTERS OF MEN ORIGINATE IN THEIR EXTERNAL CIRCUMSTANCES. Theory of the human mind.--Subjects of the present chapter--of the next.--Erroneous opinions refuted.--I. Innate principles.--This hypothesis, 1, superflous--2, unsatisfactory--3, absurd.--II. In- stincts.--Examination of this doctrine--of the arguments by which it has been enforced: from the early actions of infants--from the desire of self-preservation--from self-love--from pity.--III. Effects of antenatal impressions and original structure.--Variableness of the characters of men.--Ease with which impressions may be counter- acted.--Form of the infant undetermined.--Habits of men and other animals compared.--Inference.--Importance of these speculations.-- IV. Reasonings of the present chapter applied.--Three sorts of edu- cation--1, accident--2, precept--3, political institution.