David Ausubel Professions : Psychologist Born : October 25, 1918 Died : July 9, 2008 Browse All Authors Famous Quotes by David Ausubel The most important single factor influencing learning is what the learner already knows. Ascertain this and teach him accordingly. David Ausubel learning teacher knowledge Similar Authors Bruno Bettelheim psychologist Boris Sidis psychologist Anthony Greenwald psychologist Arnold Gesell psychologist Arno Gruen psychologist Anna Freud psychologist All Authors