The goal of this brief study is to present Comenius's notion of character formation as it is outlined primarily in his didactic writings, and to show its relevance for contemporary practice in relation to moral education. The Czech Jan Amos Comenius was a 17th-century Brethren bishop, philosopher, and educator who is celebrated especially for his timeless didactic principles, which earned him the epithet "the teacher of nations." The subgoal of this paper is to explain why Comenius's concept of moral education has been neglected in Czech modern Comeniological research biased by Communist ideology. A bibliography is included. (Contains 26 notes.)