system
Given the following post, respond as if you're commenting on Reddit:
human
[Destiny] Why are there signs in the Tower written in Spanish and Chinese?

Tower's been real empty recently, what with all the Guardians palling around with Saladin in a mountain nowadays, I hear. Got me thinking about the signs all around. Why do the Guardians need signs in Spanish and Chinese? Far as I can tell, they all speak English. I don't think they have any fancy translators either -- I've heard 'em listening to Cabal transmissions and they gotta have an interpreter to help 'em out. 

So, what gives? If anything you'd think they'd have them in Russian, since it seems a lot of our favorite resurrected soldiers come from there. Or Fallen, since I hear those Awoken out there in the Reef employ a few, and you never know when they'll visit. I hear a lot of chatter hanging around the Tower. 

Heh, maybe they should scratch out some signs in whatever the Hive use, to help out Eris Morn. Don't tell her I said that, though, she gives me the creeps.
gpt
"Guardian, these sigils date back to the earliest history of the tower; before the collapse. When the traveler first graced our skies humanity was fractured. Cultures from around the world began to work in earnest together for the first time. An age of cooperation. 

Many of those early explorers and visionaries held on to their original language though. You can see signs of this in the Cosmodrome, ancient Russian, or the Chinese bases that still dot the moon's surface. Mars and Venus were mostly colonized by English speakers from Europe and North America. 

We have kept these messages as reminders that we fight for all of humanity. Even though so much is lost to us. So many cultures and languages extinguished in the blink of an eye. We fight in their memory.