You must invent in the same time than you learn, Plutarch.
This principle reminds teachers that their teaching must allow the inventive spirit to freely expresses itself.
Obest plerumque iis, qui discere volunt, auctoritas eorum qui docent, Cicero
For those who want to learn, the obstacle can often be the authority of those who teach.
This principle emphasises the role of pedagogy and the quality of the faculty.
Mens sana in corpore sano (from Juvenal) in ambitu sano / a sound mind in a healthy body in a sound environment.
This principle shapes the social life offered to students as well as the attention given to the quality of the facilities.