9. But many things are required to the conservation of inward peace; because many things concur (as hath been showed in the foregoing chapter) to its perturbation. We have there showed, that some things there are, which dispose the minds of men to sedition, others which move and quicken them so disposed. Among those which dispose them, we have reckoned in the first place certain perverse doctrines. It is therefore the duty of those who have the chief authority, to root those out of the minds of men, not by commanding, but by teaching; not by the terror of penalties, but by the perspicuity of reasons. The laws whereby this evil may be withstood, are not to be made against the persons erring, but against the errors themselves. Those errors which, in the foregoing chapter, we affirmed were inconsistent with the quiet of the commonweal, have crept into the minds of ignorant men, partly from the pulpit, partly from the daily discourses of men, who, by reason of little employment otherwise, do find leisure enough to study; and they got into these men’s minds by the teachers of their youth in public schools. Wherefore also, on the other side, if any man would introduce sound doctrine, he must begin from the _academies_. There the true and truly demonstrated foundations of civil doctrine are to be laid; wherewith young men, being once endued, they may afterward, both in private and public, instruct the vulgar. And this they will do so much the more cheerfully and powerfully, by how much themselves shall be more certainly convinced of the truth of those things they profess and teach. For seeing at this day men receive propositions, though false, and no more intelligible than if a man should join together a company of terms drawn by chance out of an urn, by reason of the frequent use of hearing them; how much more would they for the same reason entertain true doctrines, suitable to their own understandings and the nature of things? I therefore conceive it to be the duty of supreme officers, to cause the true elements of civil doctrine to be written, and to command them to be taught in all the colleges of their several dominions. [Sidenote: Equal distribution of public burthens conduceth much to the preservation of peace.]