The first duty towards children is to make them happy. If you have not made them so, you have wronged them. No other good they may get can make up for that.
Bio: Guy Sajer was a French writer, author of Le soldat oublié, and a cartoonist under the pen names Dimitri, and Dimitri Lahache. He was the son of a French father and a German mother: Sajer is his mother's maiden name.