The wisest and noblest teacher is nature itself.

In the practice of tolerance, one's enemy is the best teacher.

I am not a teacher, but an awakener.

Behind the parents stands the school, and behind the teacher the home.

A teacher can never truly teach unless he is still learning himself. The teacher who has come to the end of his subject, who has no living traffic with his knowledge but merely repeats his lesson to his students, can only load their minds, he cannot quicken them.

I'm not a teacher: only a fellow traveler of whom you asked the way. I pointed ahead - ahead of myself as well as you.