We are like dwarfs on the shoulders of giants, so that we can see more than they, and things at a greater distance, not by virtue of any sharpness of sight on our part, or any physical distinction, but because we are carried high and raised up by their giant size.
John of Salisbury The Metalogicon (1159) bk. 3, ch. 4, quoted in R. K. Merton On the Shoulders of Giants (1965) ch. 9