He that will make good use of any part of his life must allow a large part of it to recreation.

A sound mind in a sound body, is a short, but full description of a happy state in this World: he that has these two, has little more to wish for; and he that wants either of them, will be little the better for anything else.

To ask at what time a man has first any ideas is to ask when he begins to perceive; having ideas and perception being the same thing.

The improvement of the understanding is for two ends; first, for our own increase of knowledge; secondly, to enable us to deliver and make out that knowledge to others.

A young man before he leaves the shelter of his father's house, and the guard of a tutor, should be fortify'd with resolution, and made acquainted with men, to secure his virtues, lest he should be led into some ruinous course, or fatal precipice, before he is sufficiently acquainted with the dangers of conversation, and his steadiness enough not to yield to every temptation.

Practice conquers the habit of doing, without reflecting on the rule.

Curiosity in children is but an appetite for knowledge.