In Polish the verb for learn and teach is the same word. Learn has the addition of a reflexive pronoun (się) to identify that you are talking about yourself. Essentially you are saying to teach myself.
Learn – Uczyć się
Teach – Uczyć
I like this because in order to truly learn you have to be willing to be taught. And in order to truly teach you have to have willing learners.
Anytime we want to teach someone something we need to make sure they are first willing to learn.