I thought the quote was pithy, but it didn't quite sound like Orwell to me (who I have read a lot of, though not recently). "What someone else doesn't want printed" is a formulation that doesn't quite mean _truth_; Orwell felt seriously about the journalist's responsibility to be truthful and it seemed like he might have made a finer distinction. Quick search and lo.

Orwell is claimed by partisans of all kinds due to his great reputation as a moral thinker and his willingness to criticize political actors & ideologies across the spectrum. Consequently his writings are often misquoted, misattributed or taken out of context. The "rough men stand ready to do violence on our behalf" one is a classic example.

The concept of truth is notably absent from this quote though.

Printing what someone doesn't want printed is just as likely public relations.

I get that what it's (probably) going for is bringing truth to light but truth is exactly what seems to be so slippery these days.