L. 25. dans le devoir : idiom, ' dutiful,' ' obedient
L. 27. Jeunes, mais qui, etc. : the connection is abrupt: ' Young, but showing clearly ' — i.e. letting read easily. See I.15.
9° LE CID. [Acte I, Se. II,
L. 2Ç. rf a trait, for n'a pas un trait: 'has not a feature,' etc. Such ellipsis is fréquent in Corneille. In the next line, cœur is used in the sensé of courage.