Some empirically based statements about learning are presented. The basic c
onclusion is that most of that knowledge will still be valid in the future
and that some is dependent on various cultural factors that need to be furt
her explored. Two research areas that ought to be encouraged for the future
are presented. One addresses cognitive processing and professional develop
ment of physicians. The other one deals with the development of students' u
nderstanding a concepts. Examples of how students retain their wrong unders
tanding of concepts despite training and good assessment results are presen
ted, as well as findings by Schon, Mann, and Slotnick.