The fault of another is a good teacher.
Teachers die, but books live on.
No more teachers, no more books, no more teacher's dirty looks.
I learned much from my teachers, more from my friends, and the most from my pupils.
He who is his own teacher, has a fool for his pupil.
Better than a thousand days of diligent study is one day with a great teacher.
A good mother is worth a hundred teachers.
When you learn, teach. When you get, give.
If nature is your teacher, your soul will awaken.
Johann Wolfgang von Goethe