Johann Friedrich Herbart Professions : Philosopher Born : May 4, 1776 Died : August 14, 1841 Browse All Authors Famous Quotes by Johann Friedrich Herbart In teaching, the greatest sin is to be boring. Johann Friedrich Herbart learning sin teaching Concepts become forces when they resist one another Johann Friedrich Herbart concepts force Similar Authors F. H. Bradley philosopher Irving Copi philosopher Ivan Ilyin philosopher Ivan Illich philosopher Bion of Borysthenes philosopher Bonaventure philosopher All Authors