But when I consider again, that the science of natural justice is the only science necessary for sovereigns and their principal ministers; and that they need not be charged with the sciences mathematical, as by Plato they are, farther than by good laws to encourage men to the study of them; and that neither Plato, nor any other philosopher hitherto, hath put into order, and sufficiently or probably proved all the theorems of moral doctrine, that men may learn thereby, both how to govern and how to obey; I recover some hope, that one time or other, this writing of mine may fall into the hands of a sovereign, who will consider it himself (for it is short, and I think clear), without the help of any interested, or envious interpreter; and by the exercise of entire sovereignty, in protecting the public teaching of it, convert this truth of speculation into the utility of practice.