Do not let the endless succession of small things crowd great ideals out of sight and out of mind.

Self-education is the only possible education; the rest is mere veneer laid on the surface of a child's nature.

Never be within doors when you can rightly be without.

He [the teacher] knows that children's minds hunger at regular intervals as do their bodies; that they hunger for knowledge, not for information, and that his own poor stock of knowledge is not enough, his own desultory talk has not substance enough; that his irrelevant remarks interrupt a child's train of thought; that, in a word, he is not sufficient for these things.