A conclusion sentence should bring home the significance or real-life relevance of the main ideas in your paragraph. A body paragraph should start in a fictional text, and end with real-life insight.
Since your conclusion paragraph should provide insight into real life, there is no need to mention the text, or any characters. If you don't allow yourself to reference the text, you can't distract from your takeaway by moving back to the text, instead of forward into real life or human nature.
The overall objective of an essay is to give your reader a way to better understand the world, so your conclusion sentence should explain the lesson you want your reader to learn from your paragraph. Remember you should be using the text to teach your reader about the world; you should not be teaching your reader about the text (assume they've already read it). For this reason, your overall lesson should not be about the text: it should be about society, the world, or human nature.
If we were to conclude our paragraph about patience (as seen in George from Of Mice and Men), we might end up with something like this:
Without the protection of patient people, vulnerable people are victim to the whims of violence and aggression.