"The state of nature has a law of nature to govern it, which obliges every one: and reason, which is that law, teaches all mankind, who will but consult it, that being all equal and independent, no one…"

"Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours."

"The chief business of the senses is to inform the mind of what passes without."

"The strength of a man's mind is only to be estimated by the weight of the truths it can contain."

"The thoughts of a child are of so little consequence to the world, that it is no matter how incoherent they are."