I felt this episode really did a fantastic job at showcasing how Piast didn't want to believe the work he put forth was wrong. Even more so he saw the truth when he was young, but he refused to think much of it. I think the hardest part for anyone is when we have to admit we are wrong. I think when someone else proves that we are wrong hurts much more than if we find out we are wrong because you still end up discovering the truth.
Though I do think regardless if one's work wasn't completed or if it was wrong doesn't mean someone's work meant for nothing. A core theme of the show is work being passed down from person to person and that evolution of it over time.
On another note, Jolenta mentioning reading and writing is a miracle really showcases the time they are living. Unlike now when reading & writing is something you are expected to know. In the time period of this show, it seems like it was seen as a valuable skill. Though I don't like her mentioning it as a miracle since that would mean it would tie with God.
