No One Heals Himself by Wounding Another.
nemo alium vulnerando se sanat. (Explanatio psalmorum XII 37.46)
Grammatically, it's a nice sentence. You've got a gerund, in the ablative (vulnerando), with a direct object in the accusative (alium).
More importantly, it's an important sentiment. Let us love one another...
You'll travel back to ancient Rome on a harrowing mission to save the modern world. It's the adventure of four lifetimes.