I think you misunderstood that sentence. Beauty doesn't necessarily mean appearance, especially for aphorisms and poetry. If you're marrying someone because the

I think you misunderstood that sentence. Beauty doesn't necessarily mean appearance, especially for aphorisms and poetry. If you're marrying someone because they're kind and caring, that's the thing about them that you're finding beautiful. And this confusion only goes to prove the original point, about beauty being illdefined.