The very names we use to describe ancient ideas or vanished forms of social organization would be quite meaningless if we had not known living men.
~ Marc Bloch
Thenceforth they thought that, rationally concluded, doubt could become an instrument of knowledge.
History is, in its essentials, the science of change. It knows and it teaches that it is impossible to find two events that are ever exactly alike, because the conditions from which they spring are never identical.