For, as the case of the thyroid and the adrenal so well shows, secretions which, when directly interacting, are mutually reinforcing, when affecting nerves, may become clashing opponents.
"The Glands Regulating Personality"
Louis Berman, M.D.
Seeing the individual as a system of chemical substances interacting will assist enormously to predict the nature, character and constitution of his descendants, which is essentially what the eugenist is after.
"The Glands Regulating Personality"
Louis Berman, M.D.
And what about a machine that stops interacting with its environment altogether - though its internal processes continue unabated.
"Moral Deliberations in Modern Cinema"
Sam Vaknin