Memory is the power to revive again in our minds those ideas which after imprinting have disappeared, or have been laid aside out of sight.

Understanding like the eye; whilst it makes us see and perceive all things, takes no notice of itself; and it requires art and pains to set it at a distance and make it its own subject.

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.

Certain subjects yield a general power that may be applied in any direction and should be studied by all.

As it is in the body, so it is in the mind; practice makes it what it is, and most even of those excellencies, what are looked on as natural endowments, will be found, when examined into more narrowly, to be the product of exercise, and to be raised to that pitch, only by repeated actions.

Consciousness is the perception of what passes in man's own mind.

He that uses his words loosely and unsteadily will either not be minded or not understood.