In these pages are collected in a readable form an abstract of the lives and doctrines of some of those who have stood foremost in the ranks of Free-thought in all countries and in all ages; and we trust that our efforts to place in the hands of the poorest of our party a knowledge of works and workers—some of which and whom would otherwise be out of their reach—will be received by all in a favorable light. We shall, in the course of our publication, have to deal with many writers whose opinions widely differ from our own, and it shall be our care to deal with them justly and in all cases to allow them to utter in their own words their essential thinkings.