Six years later appeared his chief work, A Discourse of Freethinking, occasioned by the Rise and Growth of a Sect called Freethinkers (1713). Notwithstanding the ambiguity of its title, and the fact that it attacks the priests of all churches without moderation, it contends for the most part, at least explicitly, for no more than must be admitted by every Protestant. Freethinking is a right which cannot and must not be limited, for it is the only means of attaining a knowledge of truth, it essentially contributes to the well-being of society, and is not only permitted but enjoined by the Bible. In fact the first introduction of Christianity and the success of all missionary enterprise involve freethinking (in its etymological sense) on the part of those converted.
