Are You Grown Up Emotionally? – Strength Magazine – May, 1924

Certain psychologists who study human behavior are worrying because the race has never grown up emotionally. Too large a proportion of adults, say these scientists, keep their baby ways.
They act like babies, they love like babies, and their ideals are babyish, even after wrinkles have come. “Emotional Retardation” is the impressive name the wise men give to this condition. It is a wholly different matter from intellectual retardation. Men and women who are highly developed intellectually may still be in
an infantile stage of emotional development. Nor does It mean lack of emotion.

Stark CenterUniversity of Texas