Don't quit the things that matter most.

In the wrong context "don't quit" messages can be rather hilarious. Someone photoshopped a bunch of "don't quit" motivators into images of alcoholics trying to drink past their limit, and it resulted in a bunch of memes where you laugh but shake your head in disapproval the whole time.

In Ukraine, Russia is doing the "just don't quit" thing and it is actually risking their entire future. Sometimes you need to cut your losses too if it turns out the thing you started wasn't a good idea.