Sexual Precocity.-There are two periods in human life when the sexual instincts should be totally dormant; and they are so when nature is not perverted. The first is the period reaching from infancy to puberty. The second is the period reached in advanced age.
If raised strictly in accordance with natural law, children would have no sexual notions or feelings before the occurrence of puberty. No prurient speculation about sexual matters would enter their heads. Until that period, the reproductive system should lie dormant in its undeveloped state. No other feeling should be exhibited between the sexes than that brotherly and sisterly affection which is so admirable and becoming.
Fortunate, indeed, would it be for humanity if this natural state always existed; but it is a lamentable fact that it is rarely seen in modern homes. Not infrequently, evidences of sexual passion are manifested before the child has hardly learned to walk. It has been suggested that this precocity is nothing remarkable or unnatural, since it is often seen in little lambs and other young animals. To this it is only necessary to reply that the development of the sexual instincts perfectly correspond with the longevity of the animal; if short-lived, like the sheep, only a short period intervenes between birth and the attainment of the sexual appetite and virility. If the animal is intended for long life, as is the case with man, these manifestation s are delayed until a much later period, or should be. Certain insects perform the sexual act as soon as they acquire their perfect form; but they perish as soon as the act is completed." - Meaning and context.">
pp.117-118
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Sexual Precocity.-There are two periods in human life when the sexual instincts should be totally dormant; and they are so when nature is not perverted. The first is the period reaching from infancy to puberty. The second is the period reached in advanced age.
If raised strictly in accordance with natural law, children would have no sexual notions or feelings before the occurrence of puberty. No prurient speculation about sexual matters would enter their heads. Until that period, the reproductive system should lie dormant in its undeveloped state. No other feeling should be exhibited between the sexes than that brotherly and sisterly affection which is so admirable and becoming.
Fortunate, indeed, would it be for humanity if this natural state always existed; but it is a lamentable fact that it is rarely seen in modern homes. Not infrequently, evidences of sexual passion are manifested before the child has hardly learned to walk. It has been suggested that this precocity is nothing remarkable or unnatural, since it is often seen in little lambs and other young animals. To this it is only necessary to reply that the development of the sexual instincts perfectly correspond with the longevity of the animal; if short-lived, like the sheep, only a short period intervenes between birth and the attainment of the sexual appetite and virility. If the animal is intended for long life, as is the case with man, these manifestation s are delayed until a much later period, or should be. Certain insects perform the sexual act as soon as they acquire their perfect form; but they perish as soon as the act is completed.

— John Harvey Kellogg

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Sexual Precocity.-There are two periods in human life when the sexual instincts should be totally dormant; and they are so when nature is not perverted. The first is the period reaching from infancy to puberty. The second is the period reached in advanced age.
If raised strictly in accordance with natural law, children would have no sexual notions or feelings before the occurrence of puberty. No prurient speculation about sexual matters would enter their heads. Until that period, the reproductive system should lie dormant in its undeveloped state. No other feeling should be exhibited between the sexes than that brotherly and sisterly affection which is so admirable and becoming.
Fortunate, indeed, would it be for humanity if this natural state always existed; but it is a lamentable fact that it is rarely seen in modern homes. Not infrequently, evidences of sexual passion are manifested before the child has hardly learned to walk. It has been suggested that this precocity is nothing remarkable or unnatural, since it is often seen in little lambs and other young animals. To this it is only necessary to reply that the development of the sexual instincts perfectly correspond with the longevity of the animal; if short-lived, like the sheep, only a short period intervenes between birth and the attainment of the sexual appetite and virility. If the animal is intended for long life, as is the case with man, these manifestation s are delayed until a much later period, or should be. Certain insects perform the sexual act as soon as they acquire their perfect form; but they perish as soon as the act is completed." in the context of "pp.117-118" to mean that wisdom is timeless.

Source: Wikiquote: "John Harvey Kellogg" (Quotes, 1881, Plain Facts For Old and Young: Burlington, IA: Segner & Condit, (1881) Full text available online. ) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
John Harvey Kellogg

About John Harvey Kellogg

John Harvey Kellogg M.D. (February 26, 1852 – December 14, 1943) was an American medical doctor in Battle Creek, Michigan, who ran a sanitarium using holistic methods, with a particular focus on nutrition, enemas, and exercise. Kellogg was an advocate of vegetarianism for health and is best known for the invention of the breakfast cereal known as corn flakes with his brother, Will Keith Kellogg. He led in the establishment of the American Medical Missionary College.