To attain to this understanding men must be studied in all the ways we can devise--individually and in the mass, for, strangely enough, men in the mass often look at things very differently from the manner in which the individuals, of whom the mass may be composed, would look at them when alone. In books, too, man must be studied, but more especially face to face, in constant, earnest observation. The preacher must get out and about. A recluse he cannot afford to be. Pale-faced piety cultivated in the cloister may be admirably adapted for Sunday exhibition, but is apt to prove rather ineffective when brought into active service in week-day tasks. Wisdom waits to be gathered in every place where men do congregate. Earnestly must the preacher listen in those moments--and they come to all true teachers of the things of life--when some fellow-mortal, compelled by very need, opens to him the secret chambers of his soul. Great, also, is the knowledge the preacher may win from self-dissection. Let him analyse his own heart unsparingly, his own motives and desires. His doubts and fears, his aspirations and longings are for his teaching that he may be able the more wisely to deal with those of other men. "Commune with thine own heart and be still." There is one man whom every preacher needs more frequently to meet, and whose acquaintance he needs to cultivate to a point of greater intimacy, and that one man is himself. Know him, and so know his race, for he is kindred, bone of bone and flesh of flesh, with all who live. He who would explain a man to himself must first have explored the dark continent of his own soul!