The child in whose development the various steps of phylogeny are recapitulated shows this tendency to deception, to simulation, and dissimulation in a very pronounced degree. Lombroso, who was the first to demonstrate that so-called moral insanity is but a continuation of childhood without the adjunct of education, cites many facts, not excepting his own example, to show that the child is naturally drawn to fraud, to deception, to simulation. The child simulates either because of fear of injury and punishment or because of vanity or jealousy. Ferrari,[3] in his excellent work on juvenile delinquency, discusses the various motives for deception and malingering in the child. According to him, deception is, first of all, instinctive with the child. It malingers because of weakness, playfulness, imitation, egotism, jealousy, envy, and revenge. Deception frequently forms for it the only available weapon of defense against the parents and teachers. Penta[4] cites many well-authenticated cases of malingering of mental symptoms in children. Of special interest is Malmstein's case of a girl of eight years who, in order to deceive her father and render him less severe in his treatment of her, and in order to gain the sympathy of those in the house who were in the habit of giving her sweets, feigned complete muteness for five months, after which time, no longer able to resist the desire to speak, she went into the woods, where, believing herself unobserved, she began to sing. St. Augustine, in his confessions, speaks of his childhood in the following manner: "I cheated with innumerable lies my teachers and parents from a love of play and for the purpose of being amused."[B] Penta, after a thorough discussion of the subject of malingering in children, comes to the conclusion that children use all the diverse forms of fraud, from simple lying to simulation, much more frequently than is believed or known. It may with them as with some lower animals simply be an instinctive playfulness, a habit or a necessity, as a weapon consciously and voluntarily wielded. This inherent tendency is, of course, modified to a considerable extent by the environment under which the child was brought up. Finally, the independence which the growing human being acquires from this form of reaction is in direct proportion to the ability he has acquired through education and precept to meet life's problems squarely in the face. We will see, later on, how the type of individual who is most likely to malinger has in reality never fully outgrown his childhood; that his reactions to the problems of everyday life are largely infantile in character. [B] Cited by Penta.