"There is no truth sure enough to justify persecution."

"What if the sun be dark’ned in his sphere, And with no chearful ray salute the spring?"

"Who can say that he who is not free is a man?"

"How charming is divine Philosophy! Not harsh, and crabbed, as dull fools suppose, But musical as is Apollo's lute, And a perpetual feast of nectared sweets, Where no crude surfeit reigns."

"The mind is its own place, and in itself Can make a Heav'n of Hell, a Hell of Heav'n."