When I was in high school, I read a lot of science fiction, and read Orson Scott Card's Ender's Game a dozen times. Setting aside that Card and I probably disagree on most things these days, I loved that his characters took on alter-egos for online discussion. Locke, Demosthenes, names that implied a specific philosophical viewpoint. When I ventured online in the early 2000s, it was under the moniker 'Epictetus,' a Greek Stoic who I loved.
Epictetus is still on my shelf. His best known work is the 'handbook,' a text of practical advice on how to live in the world, rather than the abstract philosophy so many stoics fell into. Handbook, in Greek, is Enchiridion.