A drawing is an autobiographical record of one's discovery of an event - either seen, remembered or imagined. A 'finished' work is an attempt to construct an event in itself.
John BergerFor the artist, drawing is discovery. And that is not just a slick phrase; it is quite literally true.
John BergerYou painted a naked woman because you enjoyed looking at her, put a mirror in her hand and you called the painting โVanity,โ thus morally condemning the woman whose nakedness you had depicted for you own pleasure.
John Berger