Page:William Petty - Economic Writings (1899) vol 1.djvu/343

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Preface.
245

certum reddi potest[1], and if they are false, not so false as to destroy the Argument they are brought for; but at worst are sufficient as Suppositions to shew the way to that[2] Knowledge I aim at. And I have withal for the present confined my self to the Ten principal Conclusions hereafter particularly handled, which if they shall be judged material, and worthy of a better Discussion, I hope all ingenious and candid Persons will rectifie the Errors, Defects, and || Imperfections, which probably may be found in any of the Positions, upon which these Ratiocinations were grounded. Nor would it misbecome Authority it self, to clear the Truth of those Matters which private Endeavours cannot reach to.||


  1. "Albeit there appears no certainty of years in the lease, yet if by reference to a certainty it may be made certain it sufficeth, Quia id certum est quod certum reddi potest." Coke upon Littleton, 45 b.
  2. S, 'the,' altered to 'that' by Petty, R, 'yt.'