doc-, doct-

(Latin: teach, instruct)

Quae nocent docent.
Things that hurt, teach.
Qui docet discit.
He who teaches learns.

Whenever a teacher prepares lessons for pupils/students, he/she can not help but learn; that is, if she/he actually prepares the materials.

To put it another way, "The best way to learn a subject is to teach it." Every dedicated teacher knows the truth of this proverb.

Qui timide rogat docet negare.
He who asks timidly teaches to refuse.

Other translations include: "He who asks timidly invites refusal" and "Don't be afraid to ask."

reindoctrinate (verb), reindoctrinates; reindoctrinated; reindoctrinating
To indoctrinate again; that is, to repeat the teaching of people about something: "Religious cults, political organizations, etc. are often reindoctrinating their followers."

"To reindoctrinate people with a set of beliefs so they don't accept any other ideas."

reindoctrination (s) (noun), reindoctrinations (pl)
The repetition of a doctrine, principle, ideology, etc.; especially, to imbue with a specific partisan or biased beliefs or points of view: "The leaders had a series of reindoctrinations for their followers in order to reinforce their doctrines."
Sapientia et doctrina.
Wisdom and teaching.

Motto of Fordham University, New York, New York, USA.

Sit non doctissima coniux (conjux)
May my wife not be very learned.

Said to be one of Martial's epigrams presenting a Roman formula for a happy marriage.

Studio optimae doctrinae et saluti sanitatis. (Latin motto)
Translation: "[Dedicated] to the pursuit of educational excellence and the preservation of health."

Motto of Logan College of Chiropractic, Chesterfield, Missouri, USA.