system
Given the following post, respond as if you're commenting on Reddit:
human
Does Justice Exist?

My friend and I are engaged in an argument on whether justice actually exists or not, and I naturally gravitated to the more skeptical view that justice doesn't exist.

So far, I've discussed deconstructionism and variance (across history and time), but does anyone have any other interesting rationales?

Perhaps equally as important, does anyone have any arguments on why justice exists?
gpt
In the first book of The Republic, Thrasymachus in dialogue with Plato, claims justice is "the advantage of the stronger". Plato spends the rest of the book trying to pin down what exactly justice is by formulating a polis in which he believes it resides, allowing him to trace it back to the individual. That book is a decently long read by one of the most important philosophers to ever live and yet didn't produce a definite answer to this question.