We presuppose two things: that there is yet to be learned infinitely more than is now known, and that man can learn it.
John W. CampbellGenerally, a desirable, practically attainable idea, suggested in prophecy, has a chance of forcing itself into reality by its very existence.
John W. CampbellNo literature is sound, no philosophy of action workable, if it doesn't take a hard look at itself.
John W. Campbell