30. It is evident by what hath hitherto been said, how easily the laws of nature are to be observed, because they require the endeavour only, (but that must be true and constant); which whoso shall perform, we may rightly call him _just_. For he who tends to this with his whole might, namely, that his actions be squared according to the precepts of nature, he shows clearly that he hath a mind to fulfil all those laws; which is all we are obliged to by rational nature. Now he that hath done all he is obliged to, is a just man. [Sidenote: The natural law is the same with the moral.] 31. All writers do agree, that the natural law is the same with the moral. Let us see wherefore this is true. We must know, therefore, that good and evil are names given to things to signify the inclination or aversion of them, by whom they were given. But the inclinations of men are diverse, according to their diverse constitutions, customs, opinions; as we may see in those things we apprehend by sense, as by tasting, touching, smelling; but much more in those which pertain to the common actions of life, where what this man commends, that is to say, calls _good_, the other undervalues, as being evil. Nay, very often the same man at diverse times praises and dispraises the same thing. Whilst thus they do, necessary it is there should be discord and strife. They are, therefore, so long in the state of war, as by reason of the diversity of the present appetite, they mete good and evil by diverse measures. All men easily acknowledge this state, as long as they are in it, to be evil, and by consequence that peace is good. They therefore who could not agree concerning a present, do agree concerning a future good; which indeed is a work of reason; for things present are obvious to the sense, things to come to our reason only. Reason declaring peace to be good, it follows by the same reason, that all the necessary means to peace be good also; and therefore that modesty, equity, trust, humanity, mercy, (which we have demonstrated to be necessary to peace), are good manners or habits, that is, virtues. The law therefore, in the means to peace, commands also good manners, or the practice of virtue; and therefore it is called _moral_. [Sidenote: Whence it comes to pass, that what hath been said concerning the law, is not the same with what hath been delivered by philosophers concerning the virtues.]