Times of great calamity and confusion have ever been productive of the greatest minds. The purest ore is produced from the hottest furnace, and the brightest thunderbolt is elicited from the darkest storm.

We owe almost all our knowledge not to those who have agreed, but to those who have differed.

Tyrants have not yet discovered any chains that can fetter the mind.

Power will intoxicate the best hearts, as wine the strongest heads. No man is wise enough, nor good enough to be trusted with unlimited power.

We hate some persons because we do not know them; and will not know them because we hate them.

Examinations are formidable even to the best prepared, for the greatest fool may ask more than the wisest man can answer.

Men will wrangle for religion; write for it; fight for it; anything but-live for it.

Men are born with two eyes, but with one tongue, in order that they should see twice as much as they say.

Tyrants have not yet discovered any chains that can fetter the mind.