The problem of heredity is obscured by the fog of controversy which just now envelopes it. We must remember that the main questions in doubt are its method, and extent, and our ability to intervene so as to modify or improve its operations. Science very cautiously says that “heredity suggests, though it would be rash to say it is proved, that man is almost entirely the product of inborn factors which are hardly affected by [physical] environment.”[21] “Given parents of certain constitution, it can be said with confidence that _on the average_ a certain proportion of their offspring will have such and such characters.” “Both [the Biometrician and Mendelian] agree that what is present in the germ-cell will be present in the individual, and that external conditions as a rule play but a small part in determining its appearance.” “Almost entirely,” “hardly affected,” “on the average,” “a certain proportion,” “as a rule,” form a relatively large group of qualifying clauses in three short sentences. When we know more certainly the mechanism by which heredity operates we shall be better able by eugenics and physiological or mechanical processes to combat its evils and foster its benefits. In the meantime there is no call for us to stand idle. If man were mere animal it would be another matter, but he is not. His Mystic Sense, which links him to a superior order, has steadily differentiated him from all below him. It has enabled him to transcend environment. By means of it he can acquire character even if the laws of transmission should forbid him to pass it on to his offspring by congenital endowment. It is a finer and stronger thing to improve steadily the tradition of family or race by a series of successive personal conquests and achievements than to gain exemption from evil tendencies by the more or less mechanical process of procreation. Release from temptation is not necessarily a benefit, and is never as productive of character as the gift of ability to defeat it. Frequently all that is needed is inspiration, mystical and human, to enable a man to rise above his evil inheritance and habit. Evil tradition is as real and destructive a phase of heredity as inborn weakness, whereas on the other hand _noblesse oblige_. It is rather the tradition of the family trait of intemperance than a transmitted physical peculiarity that keeps the line of drunkards unbroken. Children must not be allowed to suppose that they can be excused from struggle. Being prepared for all temptations as a normal part of experience they are least likely to become victims of any: being made expectant of all virtues, they may perchance glean some.