The rattle is a toy suited to the infant mind, and education is a rattle or toy for children of larger growth.

Some believe it to be just friends wanting, as if to be healthy enough to wish health.

Man first begins to philosophize when the necessities of life are supplied.

The best friend is he that, when he wishes a person's good, wishes it for that person's own sake.

There are branches of learning and education which we must study merely with a view to leisure spent in intellectual activity, and these are to be valued for their own sake; whereas those kinds of knowledge which are useful in business are to be deemed necessary, and exist for the sake of other things.

Friends enhance our ability to think and act.

Rhetoric is useful because the true and the just are naturally superior to their opposites, so that, if decisions are improperly made, they must owe their defeat to their own advocates; which is reprehensible. Further, in dealing with certain persons, even if we possessed the most accurate scientific knowledge, we should not find it easy to persuade them by the employment of such knowledge. For scientific discourse is concerned with instruction, but in the case of such persons instruction is impossible.