2.  Subordinate and incidental to instruction in normal sex processes, warning should be given of the dangers of individual vice, illicit sexual intercourse, and venereal diseases; but such instruction should be given only to groups that are homogeneous in respect to sex, physiological age, and social environment, or preferably, to individuals.[66]

3.  Instruction concerning venereal disease, which leaves the impression that the chief danger of illicit intercourse is “getting caught,” should not be tolerated:  knowledge of facts though scientifically accurate, is not necessarily protection to the individual or to society.

4.  As sex instruction for young people has none but practical aims, hygienic and moral, only such knowledge concerning sex processes, reproduction, and diseases should be given at each period as is necessary for the welfare of the individual at that period.

5.  The practice of masturbation is sufficiently common among both boys and girls to call for warnings to all children at the earliest ages; any teacher or parent should be qualified to help in individual cases.

6.  The education of adolescent boys must stress the six great truths that will fortify them against the main arguments of the enemies of decency and health:—­

(1) Sexual intercourse is not a physiological necessity; continence was never known to impair physical or mental vigor.

(2) There can be but one standard of chastity; the purity a man demands for his sister, he must achieve for himself.

(3) Seminal emissions are natural among healthy men; usually they need cause no concern.

(4) Gonorrhea is a terrible disease, with tragic consequences that one can never fully foretell; syphilis is worse.

(5) Every woman who offers her body for prostitution is, sooner or later, a probable source of contagion; clean living is the only positive safeguard against venereal disease.

(6) Nearly every “advertising specialist” is a criminal of the most contemptible type; the only safe adviser is the doctor in reputable standing who is not afraid to sign his name to his prescription or to his advice.

IV.  IDEALS

1.  “The function of education is to guide the intellect into a knowledge of right and wrong, to supply motives for right conduct, and to furnish occasions by which alone can moral habits be cultivated.” (Drummond.)

2.  The first aim of sex education is necessarily to bring about an open-minded, serious, if possible a reverent, attitude toward sex and motherhood, in place of the traditional secrecy and vulgarity; a teacher who cannot do this should do nothing.[67]

3.  In so far as the sex life of animals is made the basis of instruction, the difference between man and the lower animals is the point to emphasize; otherwise the facts of animal life may appear to justify irresponsible sex activities, whereas the glory of man is his control over animal instincts.