When man emerged from the jungle and stood upright on his hind legs, the shape of his head and his face changed from the long jaw and flat head of the animal to the flat face and high head of the man. All progress from that time forward was made along mental lines. According to universal law then in existence he should have been limited to a geographical area and killed by the extreme heat or cold or starved for one kind of food if it were not obtained, but against all these he fought, because he became endowed with such attributes as reason, knowledge and will-power. Instead of using his creative powers solely in hunting food and reproducing his species, he used this force in making plans for his self-preservation. He built rafts and boats to cross rivers and streams; he devised methods of clothing himself against extreme heat and cold and discovered various ways of preparing food for different climates suitable for his various needs. In other words he conserved his creative force and redirected it into its channels which have resulted in giving him precedence over all other living creatures. For man has developed a conscious mind which asserts itself by reasoning, which in turn has developed his brain power. It is said a fish as large as a man has a brain no larger than the kernel of an almond. In all fish and reptiles where there is no great brain development, there is also no conscious sexual control. The lower down in the scale of human development we go the less sexual control we find. It is said the aboriginal Australian, the lowest known species of the human family, just a step higher than the chimpanzee in brain development, has so little sexual control that police authority alone prevents him from obtaining sexual satisfaction on the streets. According to one writer, the rapist has just enough brain development to raise him above the animal, but like the animal, when in heat, knows no law except nature, which impels him to procreate, whatever the result. Every normal man and woman has the power to control and direct his sexual impulse. Men and women who have it in control and constantly use their brain cells thinking deeply, are never sensual. It is well to understand that the natural aim of the sexual impulse is the sexual act and the natural aim of the sexual act is reproduction, though it does not always result in this. It is possible for conception to take place without love, it is even possible that there is no conscious knowledge to procreate before or during the act, yet this does not disprove the fact that nature has designed it for the purpose of reproduction, no matter what uses man has put it to today. This subject of procreation we shall discuss next.