Isaac Newton Quote

Source/Notes: Letter to Robert Hooke (15 February 1676). Variant: "If I have seen further it is by standing on ye sholders of Giants."
Source/Notes: Isaaci Newtoni Opera quae exstant omnia, Volume 4 (1782), p. 370, "Theory of Light and Colors"
Source/Notes: Newton's response, whenever Edmond Halley would say anything disrespectful of religion. As quoted in: The Life of Sir Isaac Newton (1831) by Sir David Brewster