"He changes his opinions as he does his friends, and much on the same account. He has no comfort in fixed principles; as soon as anything is settled in his own mind, he quarrels with it. He has no satisfaction but the chase after truth, runs a question down, worries and kills it, then quits it like a vermin, and starts some new game, to lead him a new dance, and give him a fresh breathing through bog and brake, with the rabble yelping at his heels and the leaders perpetually at fault."

“What I mean by living to one's-self is living in the world, as in it, not of it: it is as if no one know there was such a person, and you wished no one to know it: it is to be a silent spectator of the mighty scene of things, not an object of attention or curiosity in it; to take a thoughtful, anxious interest in what is passing in the world, but not to feel the slightest inclination to make or meddle with it.”

“We are not hypocrites in our sleep.”

“An honest man speaks the truth, though it may give offence; a vain man, in order that it may.”

“It is better to be able neither to read nor write than to be able to do nothing else.”

“Unlimited power is helpless, as arbitrary power is capricious. Our energy is in proportion to the resistance it meets. We can attempt nothing great, but from a sense of the difficulties we have to encounter: we can persevere in nothing great, but from a pride in overcoming them.”

“A scholar is like a book written in a dead language — it is not every one that can read in it.”