General principles are not the less true or important because from their nature they elude immediate observation; they are like the air, which is not the less necessary because we neither see nor feel it.
William HazlittWhat are the publications that succeed? Those that pretend to teach the public that the persons they have been accustomed unwittingly to look up to as the lights of the earth are no better than themselves.
William HazlittThe book-worm wraps himself up in his web of verbal generalities, and sees only the glimmering shadows of things reflected from the minds of others.
William Hazlitt