elemental is this truth that it may best be enforced by commonplace
illustrations, and by something like a personal appeal.

A very distinguished man was one day walking with a friend along a
street in Edinburgh, when they came to one of the numerous wynds which
lead from the main thoroughfare into the midst of huge and gloomy
buildings. There the man stopped and asked to be excused while he
entered the wynd. Returning, after a moment, he explained his act by
saying that, in his young manhood, he had been tempted to do something
which would have wrecked his life. Just as he came to the place that he
had visited there sounded in his ears such a vivid warning as made it
morally impossible for him to proceed on his course of wrong-doing. He
felt sure that that voice was from above, for his whole nature, until
that instant, seemed to have been set on what would have led to moral
ruin.

Another person testified that he was once on the verge of doing what
would have brought him undying disgrace when, as if she had been drawn
out of the air, his mother stood before him, looking reproachfully at
him. Thus the fascination of temptation was broken by what he always
believed to have been a veritable spiritual presence.

Another experience is perfectly attested. A man in a distinguished
position did wrong, and was in peril of still greater wrong when
something, he could not have explained what, not only warned him but
kept warning him and following him so that he could not escape. If he
closed his eyes his danger became more vivid; if he stopped his ears
voices of reproach found their way in. He loved his wrong and would move
toward it, but then invisible hands seemed to hold him back until the
time of danger was past, and he was confirmed in right ways. Such
experiences are too numerous and varied to be doubted. No facts are
better attested. It may be said that they are only the usual warnings of
conscience. Be it so. Then what is conscience? The factors in the
problem are not materially changed, for the phenomena of conscience are
as remarkable, constant, and verifiable as light and heat. Most men who
have recorded their experiences, and who have observed with care the
workings of their own faculties, have been conscious of being attended
by some invisible presence warning them against evil. The explanation of
this phenomenon may be left for later consideration.

Closely allied to warnings against moral danger, which are so v