The most remarkable of these phenomena was that of necromancy, sorcery and magic. There were men who devoted themselves to "curious arts," and had books fraught with hidden knowledge. They could "bedim" The noon-tide sun, call forth the mutinous winds, And 'twixt the green sea and the azured vault Set roaring war: to the dread, rattling thunder They could give fire, and rift even Jove's stout oak With his own bolt--graves at their command Have waked their sleepers, oped and let them forth. And of these things the actors in them were so certain, that many witches were led to the stake, their guilt being principally established on their own confessions. But the most memorable matters in the history of the black art, were the contracts which those who practised it not unfrequently entered into with the devil, that he should assist them by his supernatural power for ten or twenty years, and, in consideration of this aid, they consented to resign their souls into his possession, when the period of the contract was expired. In the animal creation there are some species that may be tamed, and others whose wildness is irreclaimable. Horace says, that all men are mad: and no doubt mankind in general has one of the features of madness. In the ordinary current of our existence we are to a considerable degree rational and tractable. But we are not altogether safe. I may converse with a maniac for hours; he shall talk as soberly, and conduct himself with as much propriety, as any other of the species who has never been afflicted with his disease; but touch upon a particular string, and, before you are aware of it, he shall fly out into the wildest and most terrifying extravagances. Such, though in a greatly inferior degree, are the majority of human beings. The original impulse of man is uncontrolableness. When the spirit of life first descends upon us, we desire and attempt to be as free as air. We are impatient of restraint. This is the period of the empire of will. There is a power within us that wars against the restraint of another. We are eager to follow our own impulses and caprices, and are with difficulty subjected to those who believe they best know how to control inexperienced youth in a way that shall tend to his ultimate advantage. The most moderate and auspicious method in which the old may endeavour to guide and control the pursuits of the young, undoubtedly is by the conviction of the understanding. But this is not always easy. It is not at all times practicable fully to explain to the apprehension of a very young person the advantage, which at a period a little more advanced he would be able clearly to recognise. There is a further evil appertaining to this view of the subject.