Institutio Oratoria

And what can be more honourable than to teach that which you know surpassing well? It was for this that the elder Caelius brought his son to Cicero, as the latter [*](pro Cael. iv. 10. ) tells us, and it was with this intent that the same great orator took upon himself the duties of instructor, and trained Pansa, Hirtius and Dolabella by declaiming daily before them or hearing them declaim.