Dr. Stall says: "Medical authorities attach great importance to the mental condition at the moment of conjunction and conception. It is quite universally believed that this is a moment of unparalleled importance to the welfare of the future being. It is an awful crime to beget life carelessly, and when in improper and unworthy mental states. Some people seem to think that the matter of begetting a child, like the matter of selecting a wife, should be left wholly to blind chance. Neither of these two important events can be too much safeguarded by wise and thoughtful consideration. If conception is permitted to take place when either one or both of the parents are in bad health; if the wife is an unwilling mother, and the embryo is developed by her while her whole nature rebels against the admission into the family of a child who is not wanted, the children begotten and born under such circumstances can never be other than sickly, nervous and fretful during their entire childhood, and cross and uncompanionable throughout their whole lives. "Much of the differences which exist between children of the same parents may be easily attributed to the different bodily and mental conditions of the parents at the period of conjunction, the changed physical, intellectual and emotional states of the parents at the different periods of conception producing the corresponding differences in their offspring. The results of purposed and prepared parenthood are so great and so desirable that a husband and wife should consider these matters carefully, making preparations, and approach the period when they would beget offspring and bring immortal beings into the world with the greatest thoughtfulness, consideration, and also with prayer."