“It is my firm conviction that those sermons are most likely to convert men that really appeal to their hearts, not those that are fired over their heads, or that are aimed only at their intellects. I am sorry to say that I know some preachers who will never do much good in the world; they are good men, they have plenty of ability, they can speak well, and they have a good deal of shrewdness; but, somehow or other, there is a very sad omission in their nature, for to anyone who knows them, it is quite evident that they have not any heart. I know one or two men who are as dry as leather.”-Spurgeon, The Soul Winner, 100–101.