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The first is, of Principles, some be called Speculatiue, and some Practiue: The speculatiue be those naturall knowledges or Propositions, whereof Naturall Philosophie or the Mathe∣maticall Sciences be grounded, as these: The whole is more then his part: Those things which are equall to a third, are
equall among themselues: of one simple body, there is but one naturall mouing, and such like. The Principles Practiue, bee those naturall knowledges, whereby mens manners are gouer∣ned: for by this naturall light we know the difference betwixt good and euill: As for example: these be Principles Practiue: God is to be honored and obeyed: Iustice is to be embraced: ciuill societie is to be maintained, and the disturbers thereof to be punished: these and such like Propositions are naturally receiued of all men as infallible verities. Againe, of Principles, some be called Generall, and some Proper. The Generall, be those that may be applied to many Sciences, as these: the whole is more then any of his parts, if equall be taken from equall, e∣quall doe remaine and such like. The proper Principles bee those, that are properly belonging to some one certaine Sci∣ence, as a line to be a length without breadth, is a principle of Geometrie: Againe, this proposition, euery thing is, or is not, is a principle of Logick: and to be short, euery Science hath his proper principles: of which some bee called dignities or Maximes, and some Positions.