After our ages-long journey from savagery to civility, let's hope we haven't bought a round-trip ticket.

Failure can be bought on easy terms; success must be paid for in advance

Wisdom is what's left after we've run out of personal opinions.

Our laws can be friendly to those who obey them, and too often useful to those who don't.

Every adult should be an expert on teenagers, after spending life's seven longest years being one.

A good education prepares a child to be a good employee and a good citizen-in that order, with the importance of the former never exceeding the importance of the latter.

Our freedom to discipline ourselves is a freedom we can lose if we don't use it.