I understand, but in my case the teachers is not ''formal'', my dad, my siblings, my aunts/uncles, my grandparents, my friends, my past and present relationships, each one is a teacher. It depends on how you view the lessons you learn throughout your life. You too can be a teacher and you are one. They are different points and in my case I don't follow a temple, a religion, a leader, etc. In the text it warns of false teachers, but it does not deny the existence of real ones. Jesus Christ, was a teacher and there is a text with his teachings (the bible), for example.
Thank you friend for reading and commenting, it is a pleasure to see you here.