system
A chat on subreddit /r/PoliticalCompassMemes
human
Tolkien himself explicitly stated when he wrote the lord of the rings books they were very heavily influenced by Christianity and carry a Christian message, but was intended to not have an overt message so it would be more palatable to non Christians. 

Tolkien was an interesting guy. He so thoroughly believed words held power that when someone gifted him a chalice with the words on the ring inscribed on the inner rim in Black Speech, he refused to drink from it because he thought it would be bad luck. Because the language was intended to be evil, and thus perceived as such.

If you want to get into some of the obvious ones, three of our main characters are the three aspects of Christ. The Messiah (Gandalf), the King (Aragorn) and the Shepard (Samwise).
gpt
&gt; Tolkien was an interesting guy. He so thoroughly believed words held power that when someone gifted him a chalice with the words on the ring inscribed on the inner rim in Black Speech, he refused to drink from it because he thought it would be bad luck. Because the language was intended to be evil, and thus perceived as such.

Not only that, but I believe he used it as an ash tray.