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=== De sententia quam Newtonus de sua formula habebat ===
Newtonus ipse suam formulam credidit imperfectam, quod, secundum eam, vires gravitationales sine ulla mora per [[spatium]] translatae sunt. De hoc phaenomeno, quod hodie dicitur [[actio trans distantiam|actiones trans distantias]], autem, Newtonus nullas explicationes habebat in "[[Philosophiae Naturalis Principia Mathematica|Philosophiae Naturali Principia Mathematica]]".
{{Citatio|Rationem vero harum gravitatis proprietatum ex phaenomenis nondum potui deducere, et hypotheses non fingo. Quicquid enim ex phaenomenis non deducitur, hypothesis vocanda est; et hypotheses seu metaphysicae, seu physicae, seu qualitatum occultarum, seu mechanicae, in philosophia experimentali locum non habent. In hac philosophia propositiones deducuntur ex phaenomenis, et redduntur generales per inductionem. Sic impenetrabilitas, mobilitas, impetus corporum, et leges motuum et gravitatis innotuerunt. Et satis est quod Gravitas revera existat, et agat secundum leges a nobis expositas, et ad corporum caelestium et maris nostri motus omnes sufficiat."|Isaacus Newtonus<ref>Scholium Generale:
Newtonus quoque sentiebat causam gravitatis quandam esse necessariam,<ref>Secundum chartam ad Dr Bentley 25 Februarii [[1693]] (I B Cohen, Isaac Newton's papers and letters on natural philosophy and related documents (Cambridge, 1958)., pag. 302): "It is inconceivable that inanimate brute matter should, without the mediation of something else, which is not material, operate upon, and effect other matter without mutual contact, as it must be if gravitation in the sense of Epicurus be essential and inherent in it. And this is one reason why I desired you would not ascribe innate gravity to me. That gravity should be innate, inherent and essential to matter, so that one body may act upon another at a distance through a vacuum, without the mediation of anything else, by and through which their action and force may be conveyed from one to another, is to me a great absurdity, and I believe that no man who has in philosophical matters a competent faculty of thinking, can ever fall into it. Gravity must be caused by an agent acting constantly according to certain laws; but whether this agent be material or immaterial I have left to the consideration of my reader."; capta e [http://www-groups.dcs.st-and.ac.uk/~history/HistTopics/Gravitation.html sito interretiali]. </ref> sed nullae ideae de causa futurae erant trecentos annos.
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