It is most obvious Viggo did not understand, assuming he read the book, Eowyn’s answer to the peace-nik doctor of Minas Tirith who lamented the ownership of swords as an evil in his world. Eowyn said, ~"Those who do not own swords can still die on them." Or something like that.
I also felt he was the weakest actor in the movie. After reading the books I had hopes Aragorn’s role would have be filled by a man’s man. Not a narrow shouldered actor that looks tuff because everyone around him is made to look shorter. ;O) It reminds me of when I was a kid, I thought Bat-Man was one tuff dude. When I saw one of those old TV series as an adult, it occurred to me Bat-Man was a wimp actor. ;o)