"A speaker must possess a large-hearted regard for the welfare of his audience," he writes, and here again we see Conwell explaining Conwellism. "Enthusiasm invites enthusiasm," is another of his points of importance; and one understands that it is by deliberate purpose, and not by chance, that he tries with such tremendous effort to put enthusiasm into his hearers with every sermon and every lecture that he delivers. "It is easy to raise a laugh, but dangerous, for it is the greatest test of an orator's control of his audience to be able to land them again on the solid earth of sober thinking." I have known him at the very end of a sermon have a ripple of laughter sweep freely over the entire congregation, and then in a moment he has every individual under his control, listening soberly to his words. He never fears to use humor, and it is always very simple and obvious and effective. With him even a very simple pun may be used, not only without taking away from the strength of what he is saying, but with a vivid increase of impressiveness. And when he says something funny it is in such a delightful and confidential way, with such a genial, quiet, infectious humorousness, that his audience is captivated. And they never think that he is telling something funny of his own; it seems, such is the skill of the man, that he is just letting them know of something humorous that they are to enjoy with him. "Be absolutely truthful and scrupulously clear," he writes; and with delightfully terse common sense, he says, "Use illustrations that illustrate"--and never did an orator live up to this injunction more than does Conwell himself. Nothing is more surprising, nothing is more interesting, than the way in which he makes use as illustrations of the impressions and incidents of his long and varied life, and, whatever it is, it has direct and instant bearing on the progress of his discourse. He will refer to something that he heard a child say in a train yesterday; in a few minutes he will speak of something that he saw or some one whom he met last month, or last year, or ten years ago--in Ohio, in California, in London, in Paris, in New York, in Bombay; and each memory, each illustration, is a hammer with which he drives home a truth. The vast number of places he has visited and people he has met, the infinite variety of things his observant eyes have seen, give him his ceaseless flow of illustrations, and his memory and his skill make admirable use of them. It is seldom that he uses an illustration from what he has read; everything is, characteristically, his own. Henry M. Stanley, who knew him well, referred to him as "that double-sighted Yankee," who could "see at a glance all there is and all there ever was."