A succinct and pithy saying, but generally incorrect. Historically, good times create a food surplus. A food surplus creates well-nourished armies. Well-nourished armies, for better or for worse, create hard times for everybody else.
As I've posted elsewhere in this thread, I would recommend reading the following series of blog posts.
https://acoup.blog/2020/01/17/collections-the-fremen-mirage-...