Docendo discimus (Latin) - "by teaching, we learn."

Docendo discimus is a Latin proverb meaning "by teaching, we learn." 

https://en.wikipedia.org/wiki/Docendo_discimus

"docendo discimus", "by teaching we learn", listed in the Oxford Dictionary of Latin Words and Phrases

Seneca's [Letters vii.8] "homines dum docent discunt" - ("while they teach, men learn") 

"qui docet discit", "he who teaches learns" - anonymous

“By learning you will teach, by teaching you will learn.”- Latin Proverb

Docendo discitur: teaching others teaches yourself

disco discere didici [to learn , get to know]; 'discere fidibus', [to learn to play on the lyre]; in gen., [to receive information, find out; to become acquainted with, learn to recognize].

doceo docere docui doctum [to teach , instruct] (with acc. of person and/or thing); with clause, [to inform that or how]; 'docere fabulam', [to teach a play to the actors, to bring out, exhibit

docendo disco, scribendo cogito - I learn by teaching, think by writing.

https://wickstrom1.wordpress.com/by-learning-you-will-teach-by-teaching-you-will-learn”/

https://www.gregenriquez.com/2018/02/in-learning-you-will-teach-and-in-teaching-you-will-learn/