(18) But if, in despotic statecraft, the supreme and essential mystery be to hoodwink the subjects, and to mask the fear, which keeps them clown, with the specious garb of religion, so that men may fight as bravely for slavery as for safety, and count it not shame but highest honour to risk their blood and their lives for the vainglory of a tyrant; yet in a free state no more mischievous expedient could be planned or attempted. (19) Wholly repugnant to the general freedom are such devices as enthralling men's minds with prejudices, forcing their judgment, or employing any of the weapons of quasi-religious sedition; indeed, such seditions only spring up, when law enters the domain of speculative thought, and opinions are put on trial and condemned on the same footing as crimes, while those who defend and follow them are sacrificed, not to public safety, but to their opponents' hatred and cruelty. (20) If deeds only could be made the grounds of criminal charges, and words were always allowed to pass free, such seditions would be divested of every semblance of justification, and would be separated from mere controversies by a hard and fast line. (20) Now, seeing that we have the rare happiness of living in a republic, where everyone's judgment is free and unshackled, where each may worship God as his conscience dictates, and where freedom is esteemed before all things dear and precious, I have believed that I should be undertaking no ungrateful or unprofitable task, in demonstrating that not only can such freedom be granted without prejudice to the public peace, but also, that without such freedom, piety cannot flourish nor the public peace be secure. (21) Such is the chief conclusion I seek to establish in this treatise; but, in order to reach it, I must first point out the misconceptions which, like scars of our former bondage, still disfigure our notion of religion, and must expose the false views about the civil authority which many have most impudently advocated, endeavouring to turn the mind of the people, still prone to heathen superstition, away from its legitimate rulers, and so bring us again into slavery. (22) As to the order of my treatise I will speak presently, but first I will recount the causes which led me to write.