“R. M. Renfield, ætat 59.—Sanguine temperament; great physical strength; morbidly excitable; periods of gloom, ending in some fixed idea which I cannot make out. I presume that the sanguine temperament itself and the disturbing influence end in a mentally-accomplished finish; a possibly dangerous man, probably dangerous if unselfish. In selfish men caution is as secure an armour for their foes as for themselves.
What I think of on this point is, when self is the fixed point the centripetal force is balanced with the centrifugal; when duty, a cause, etc., is the fixed point, the latter force is paramount, and only accident or a series of accidents can balance it.”