The best authorities seem to favor a middle-view, holding that acquired characteristics may be and are transmitted as "tendencies" in the offspring. Thus as each succeeding generation manifests the acquired tendency, it adds a cumulative force to the family heredity. At the same time they hold that "environment" is needed to "draw out" the inherited "tendency." For instance, a child born with evil tendencies, and placed in an evil environment, will most likely manifest evil conduct. The same child, if placed in a good environment, will not have the evil tendencies "drawn out" by the environment, and will probably not manifest evil conduct. The same rule applies to the child drawn with good "tendencies." In short, it is held that heredity and environment tend to balance each other--the "something within" is called out (or not called out) by the "something without." The life of the individual is held to be a continuous action and reaction between heredity and environment, and both of these elements must be taken into consideration when we think of the subject. Shute says: "As influencing a man's life and character, which is the strongest factor, heredity or environment?" In our opinion, as the result of long study and reading, where we have an average man of a sound mind in a sound body, there environment will be the strongest factor whether for good or evil--that is, in men in general, who have no organic defect, such as insanity or idiocy, and allied affections, the stronger force is environment; but in those having such defect, heredity is the controlling power, and we may add, the destroying power. The Eugenic Rule Regarding Heredity. It is one of the cardinal principles of Eugenics that those with a bad family history should not become parents. By this it is not meant that the manifestation of undesirable tendencies, physical, mental, and moral, on the part of certain individuals of a family necessarily constitutes a "bad family history." On the contrary, many of the best families have, from time to time, individuals who manifest undesirable tendencies, and who are in general out of harmony with the general family standard. It is an old axiom that "there is a black sheep in every flock"; and the flock must be measured by its general standard, and not by its exceptional black sheep.