Republics decline into democracies and democracies degenerate into despotisms.

1 is not prime, by definition. 2 is an unnatural prime, 4 is an unnatural prime, and 6 is an unnatural prime. All other natural primes cannot be unnatural primes.

Since music has so much to do with the molding of character, it is necessary that we teach it to our children.

The ideal man takes joy in doing favors for others.

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

There is simple ignorance, which is the source of lighter offenses, and double ignorance, which is accompanied by a conceit of wisdom.

Concerning the generation of animals akin to them, as hornets and wasps, the facts in all cases are similar to a certain extent, but are devoid of the extraordinary features which characterize bees; this we should expect, for they have nothing divine about them as the bees have.