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

"No government can have a right to obedience from a people who have not freely consented to it."

"He who would make his son a good man, must begin betimes with him, and set him to rights, whilst he is flexible, and his mind is easy to be wrought upon."

"The knowledge of man's self is the beginning of all wisdom."

"All men are liable to error, and most men are in many points erroneous."