As to adultery, let it be held disgraceful, in general, for any man or woman to be found in any way unfaithful when they are married, and called husband and wife. If during the time of bearing children anything of the sort occur, let the guilty person be punished with a loss of privileges in proportion to the offense.

It is not easy for a person to do any great harm when his tenure of office is short, whereas long possession begets tyranny.

The roots of education are bitter, but the fruit is sweet.

But since there is but one aim for the entire state, it follows that education must be one and the same for all, and that the responsibility for it must be a public one, not the private affair which it now is, each man looking after his own children and teaching them privately whatever private curriculum he thinks they ought to study.

Obstinate people can be divided into the opinionated, the ignorant, and the boorish.

To learn is a natural pleasure, not confined to philosophers, but common to all men.

Money was established for exchange, but interest causes it to be reproduced by itself. Therefore this way of earning money is greatly in conflict with the natural law.