Quintilian, Institutio Oratoria 2.9:
Having said much about the duties of teachers I have this one bit of advice for students in the meantime. Students should love their teachers no less than their studies, and should consider them as parents not of their bodies, but of their minds. This devotion can add a lot to their pursuit of knowledge. For thus they will listen happily, believe the precepts they receive, and wish to be similar to their teachers; they will come quickly and happily to their classes, they will not become angry when corrected, they will rejoice when praised, they will become worthy of being most esteemed through their study. For as the duty of teachers is to teach, so is it the duty of students to make themselves teachable. Otherwise, neither is sufficient without the other, and as human offspring come forth from both parents, and you scatter your seed for nothing unless the furrow is softened beforehand to nourish it, so too eloquence is unable to grow unless a sociable concord is achieved between the bestower and the receiver of lessons.
Plura de officiis docentium locutus discipulos id unum interim moneo, ut praeceptores suos non minus quam ipsa studia ament et parentes esse non quidem corporum, sed mentium credant. Multum haec pietas conferet studio; nam ita et libenter audient et dictis credent et esse similes concupiscent, in ipsos denique coetus scholarum laeti alacres conuenient, emendati non irascentur, laudati gaudebunt, ut sint carissimi studio merebuntur. Nam ut illorum officium est docere, sic horum praebere se dociles: alioqui neutrum sine altero sufficit; et sicut hominis ortus ex utroque gignentium confertur, et frustra sparseris semina nisi illa praemollitus fouerit sulcus, ita eloquentia coalescere nequit nisi sociata tradentis accipientisque concordia.
