The character of each individual is held to be the result of the impressions made upon the plastic material of the mind, either in the form of past impressions upon his ancestors or of past impressions received by the individual. The past impressions reach him through the channel of heredity, while the personal impressions come to him through environment. But by heredity we do not mean the transmission of the personal characteristics of one's parents or even grand-parents, but something far deeper and broader. We believe that one inherits far less of the qualities of one's parents than is generally believed. But, we believe that much that goes to make up our character is derived from the associated qualities and impressions of many generations of ancestors. Inasmuch as each individual contains within him the transmitted qualities of nearly every individual who lived several thousand years ago, it may be said that each individual is an heir to the accumulated impressions of the race, which however form in an infinite variety of combinations, the result being that although the root of the race is the same yet each individual differs in combination from each other individual. As Luther Burbank has said: "Heredity means much, but what is heredity? Not some hideous ancestral specter, forever crossing the path of a human being. Heredity is simply the sum of all the effects of all the environments of all past generations on the responsive ever-moving life-forces." The records of the past environment of the race are stored away in the great region of the subconscious mentality, from whence they arise in response to the call of some attractive object of thought or perception, always, however, modified and restrained by the opposite characteristics. As Prof. Elmer Gates has said: "At least ninety per cent of our mental life is sub-conscious. If you will analyze your mental operations you will find that conscious thinking is never a continuous line of consciousness, but a series of conscious data with great intervals of subconsciousness. We sit and try to solve a problem and fail. We walk around, try again and fail. Suddenly an idea dawns that leads to a solution of the problem. The sub-conscious processes were at work. We do not volitionally create our own thinking. It takes place in us. We are more or less passive recipients. We cannot change the nature of a thought, or of a truth, but we can, as it were, guide the ship by a moving of the helm."