“Look here, Sancho,” said Don Quixote, “by him thou didst swear by just now I swear thou hast the most limited understanding that any squire in the world has or ever had. Is it possible that all this time thou hast been going about with me thou hast never found out that all things belonging to knights-errant seem to be illusions and nonsense and ravings, and to go always by contraries? And not because it really is so, but because there is always a swarm of enchanters in attendance upon us that change and alter everything with us, and turn things as they please, and according as they are disposed to aid or destroy us; thus what seems to thee a barber’s basin seems to me Mambrino’s helmet, and to another it will seem something else; and rare foresight it was in the sage who is on my side to make what is really and truly Mambrino’s helmet seem a basin to everybody, for, being held in such estimation as it is, all the world would pursue me to rob me of it; but when they see it is only a barber’s basin they do not take the trouble to obtain it; as was plainly shown by him who tried to break it, and left it on the ground without taking it, for, by my faith, had he known it he would never have left it behind.