3 · Human Being, Man in General
31 · man in a general biological sense
31D · human life and its ages (young, adult, old, etc.)
31D1 · the ages of man
31D12 · youth, young man, adolescent
31D120 ·
Youth, Adolescence, 'Iuventus'; 'Adolescenza', 'Gioventù' (Ripa)