23U22 · hourglass
31A2352 · sitting on an elevation
31A2536 · hand(s) towards the mouth
31A534 · beard
31B623591 · putting a finger to the lips, 'Silentium'; 'Silentio' (Ripa)
31D14 · adult man
41A251 · study; 'studiolo'; library
41A3211 · open door
41A711 · table
41A712 · shelves, rack, sideboard
41A713 · cover for table, etc.
41A7212 · armchair, seat
41D212(+81) · coat, cape (+ men's clothes)
41D221(+81) · head-gear (+ men's clothes)
49C32 · scholar in his study
49M32 · book
49MM32 · book - MM - book open
49N21 · lectern ~ reading
96A33 · Harpocrates
52A51 · Wisdom; 'Sapienza', 'Sapienza humana', 'Sapienza vera' (Ripa)
52AA5 · Ignorance; 'Ignoranza', 'Ignoranza di tutte le cose', 'Ignoranza in un ricco senza lettere' (Ripa)
52AA51 · Folly, Foolishness; 'Pazzia', 'Sciocchezza', 'Stoltitia' (Ripa)
52DD3(+4) · Taciturnity; 'Secretezza', 'Secretezza overo Taciturnità' (Ripa) (+ emblematical representation of concept)