intriguer, enemy,—subordinate, courtier, snob. Some never come out into public view. Others are called out only by exceptional circumstances. But the characters take their form from a man's conception of the situation in which he finds himself. If the environment to which he is sensitive happens to be the smart set, he will imitate the character he conceives to be appropriate. That character will tend to act as modulator of his bearing, his speech, his choice of subjects, his preferences. Much of the comedy of life lies here, in the way people imagine their characters for situations that are strange to them: the professor among promoters, the deacon at a poker game, the cockney in the country, the paste diamond among real diamonds.
3
Into the making of a man's characters there enters a variety of influences not easily separated. [Footnote: For an interesting sketch of the more noteworthy early attempts to explain character, see the chapter called "The Antecedents of the Study of Character and Temperament," in Joseph Jastrow's The Psychology of Conviction .] The analysis in its fundamentals is perhaps still as doubtful as it was in the fifth century B. C. when Hippocrates formulated the doctrine of the humors, distinguished the sanguine, the melancholic, the choleric, and the phlegmatic dispositions, and ascribed them to the blood, the black bile, the yellow bile, and the phlegm. The latest theories, such as one finds them in Cannon, [Footnote: Bodily Changes in Pleasure, Pain and Anger .] Adler, [Footnote: The Neurotic Constitution .] Kempf, [Footnote: The Autonomic Functions and the Personality; Psychopathology. Cf . also Louis Berman: The Glands Regulating Personality .] appear to follow much the same scent, from the outward behavior and the inner consciousness to the physiology of the body. But in spite of an immensely improved technique, no one would be likely to claim that there are settled conclusions which enable us to set apart nature from nurture, and abstract the native character from the