Tracts can go everywhere. Tracts know no fear. Tracts never tire. Tracts can be multiplied without end by the press. Tracts can travel at little expense. They run up and down like the angels of God, blessing all, giving to all and asking no gift in return. They can talk to one as well as to a multitude, and to a multitude as well as to one. They require no public room in which to tell their story. They can tell it in the kitchen or the shop, the parlor or the closet, the cottage or the mansion, on the broad highway or in the footpath through the fields. They take no note of scoffs, or jeers, or taunts. No one can betray them into hasty or random expressions. Though they will not always answer questions, they will tell their story twice, or thrice, or four times over if you wish. And they can be made to speak on every subject, and on every subject they may be made to speak wisely and well. They can, in short, be made vehicles of all truth, the teachers of all classes, the benefactors of all lands.