Newton's postulate of an invisible force able to act over vast distances led to him being criticised for introducing "occult agencies" into science.Edelglass et al., Matter and Mind, . p. 54 Later, in the second edition of the Principia (1713), Newton firmly rejected such criticisms in a concluding "General Scholium," writing that it was enough that the phenomena implied a gravitational attraction, as they did; but they did not so far indicate its cause, and it was both unnecessary and improper to frame hypotheses of things that were not implied by the phenomena. (Here Newton used what became his famous expression "hypotheses non fingo").On the meaning and origins of this expression, see Kirsten Walsh, Does Newton feign an hypothesis? , Early Modern Experimental Philosophy , 18 October 2010.
Newton's postulate of an invisible force able to act over vast distances led to him being criticised for introducing "occult agencies" into scienceEdelglass et al Matter and Mind  p 54 Later in the second edition of the Principia (1713) Newton firmly rejected such criticisms in a concluding "General Scholium" writing that it was enough that the phenomena implied a gravitational attraction as they did; but they did not so far indicate its cause and it was both unnecessary and improper to frame hypotheses of things that were not implied by the phenomena (Here Newton used what became his famous expression "hypotheses non fingo")On the meaning and origins of this expression see Kirsten Walsh Does Newton feign an hypothesis  Early Modern Experimental Philosophy  18 October 2010