They have there no appropriate color, but ever appear of the color of the light cast upon them, but yet with this difference, that they are most brisk and vivid in the light of their own daylight color.
Minium appeareth there of any color indifferently with which 'tis illustrated, but yet most luminous in red; and so Bise appeareth indifferently of any color with which 'tis illustrated, but yet most luminous in blue.

And therefore Minium reflecteth rays of any color, but most copiously those indued with red; and consequently, when illustrated with daylight--that is, with all sorts of rays promiscuously blended--those qualified with red shall abound most in the reflected light, and by their prevalence cause it to appear of that color.

And for the same reason, Bise, reflecting blue most copiously, shall appear blue by the excess of those rays in its reflected light; and the like of other bodies.

And that this is the entire and adequate cause of their colors is manifest, because they have no power to change or alter the colors of any sort of rays incident apart, but put on all colors indifferently with which they are enlightened."(2) This epoch-making paper aroused a storm of opposition.

Some of Newton's opponents criticised his methods, others even doubted the truth of his experiments.