@marick It is even simpler than that: "Survival of the fit enough".
Whatever else is going on, you only need to meet the bar of being viable. No need to waste energy to reach the apex in all of the environments. You can put it to make a niche of your own instead. Or not, the evolution wouldn't judge.
@dpwiz You are correct.
In terms of dueling slogans, I don’t think that would work. It’s very important to suggest to the reader that they are on the right side of history/evolution/economics/God – some extra-human entity that sets down The Rules.