Without dishonor, we wouldn't know what honor is.

Right. But although we would not know what honor is, it would still exist, being the rule and not the exception.

I would think that there is no beauty because beauty is a concept.

I would ask you then, have you seen a beautiful person? Because for a beautiful person to exist, beauty must exist. And here we realize that beauty is not a concept, a word nothing more, but refers to something real that exists.

Beauty is as permanent as the color red. Would the red color exist if there are no red things? We could say that there are no red things, but the red color could be created by mixing other colors. So, it exist?

The context changes, and people consider other things beautiful, but the beauty taken in itself has always existed. So that for beautiful things to exist, beauty must exist.

And I also believe that there are things that don't change, such as ideas, or colors. Red things fade over time and change color, but red taken itself is never another color.