John Locke — "Virtue is harder to be got than a knowledge of the world."

"No man's knowledge here can go beyond his experience."

"He that knows the world, will not be too fastidious, or censorious of the manners of others."

"Though the things of nature are given in common, yet man, by being master of himself, and proprietor of his own person, and the actions or labour of it, had still in himself the great foundation of pr…"

"The private judgment of every particular person concerning the truth or falsehood of any doctrine, or the sincerity of any worship, cannot be over-ruled by the public authority of the commonwealth."

"The only security against the world is a thorough knowledge of it."