Authors:

One never knows enough about characters in real life to put them into novels. One gets started and then, suddenly, one can not remember what toothpaste they use; what are their views on interior decoration, and one is stuck utterly. No, major characters emerge; minor ones may be photographed.

Graham Greene, Henry J. Donaghy (1992). “Conversations with Graham Greene”, p.42, Univ. Press of Mississippi
One never knows enough about characters in real life to put them into novels. One gets started and then, suddenly, one can not remember what toothpaste they use; what are their views on interior decoration, and one is