The study of mathematics is apt to commence in disappointment.
Do not teach too many subjects and what you teach, teach thoroughly.
I have always noticed that deeply and truly religious persons are fond of a joke, and I am suspicious of those who aren't.
Some of the finest moral intuitions come to quite humble people. The visiting of lofty ideas doesn't depend on formal schooling.
The purpose of education is not to fill a vessel but to kindle a flame.
Religion is what the individual does with his own solitariness.