“No one is ignorant that the educational influences to which one is subjected during his whole life and especially during infancy, and the solicitations of self-interest, are exceedingly variable under different circumstances and for different individuals; and that the educational influences and the solicitations of self-interest unite very generally to furnish the motive for criminal conduct and for honest conduct as well. And it is this that governs every man’s manner of acting in his relations with others; and it must not be forgotten in treating of anthropology, whether anatomical, physio-psychological, or sociological. It is never forgotten in practical life. “We all know that, whatever our fundamental character may be and the honest habits that we have been able to form, our manner of conducting ourselves may vary considerably under the influence of changes in our environment, and in proportion to those changes. It is a temptation to which the most austere man would greatly dread to be exposed, and to which he would never voluntarily expose himself, because he knows that the tendencies imputed to criminals (said to be atavistic, but all simply human) are not lacking in himself. These tendencies, when they have found abundant and honorable means of satisfaction during long years, become so much the more to be dreaded on this account, and run great danger of becoming criminal as soon the legal means of satisfaction disappear. The man who comes to lack these means finds himself in a much more dangerous situation as far as the likelihood of his becoming a criminal is concerned, than one who had become accustomed to privations.” [172] Professor Manouvrier begins the last section of his study by asking what is the significance of the anatomical peculiarities observed in the so-called born-criminals. “The truth probably is that we do find in a number of criminals in prison more of the lower or abnormal characteristics than in a like number of persons chosen at random. But this in no wise proves that those among the criminals who have such characteristics, have been predestined to crime from their physical make-up. Those among them who are not so constituted are nevertheless criminals, and honest men who bear the criminal marks have nevertheless remained honest.