Nobody is made anything by hearing of rules, or laying them up in his memory; practice must settle the habit of doing, without reflecting on the rule; and you may as well hope to make a good painter, or musician, extempore, by a lecture and instruction in the arts of music and painting, as a coherent thinker, or a strict reasoner, by a set of rules, showing him wherein right reasoning consists.

A man may live long, and die at last in ignorance of many truths, which his mind was capable of knowing, and that with certainty.

All wealth is the product of labor.

Hence it is a mistake to think, that the supreme or legislative power of any common-wealth, can do what it will, and dispose of the estates of the subject arbitrarily, or take any part of them at pleasure.

Till a man can judge whether they be truths or not, his understanding is but little improved, and thus men of much reading, though greatly learned, but may be little knowing.

Whoever uses force without Right ... puts himself into a state of War with those, against whom he uses it, and in that state all former Ties are canceled, all other Rights cease, and every one has a Right to defend himself, and to resist the Aggressor.

Good and evil, reward and punishment, are the only motives to a rational creature