Dr. Ernesto “Che” Guevara

‎”Later we will realize many times how mistaken we were in concepts that were so familiar they became part of us and were an automatic part of our thinking. Often we need to change our concepts, not only the general concepts, the social or philosophical ones, but also sometimes, our medical concepts.” -Dr. Ernesto “Che” Guevara (June 14,1928 – October 9, 1967), On Revolutionary Medicine