I looked at longevity in show business when I was about 13, and the people who seemed to have longevity were the ones who'd spent quite a bit of time learning about what they were doing before they made it. ↗
When I started out in 1960, I thought it might possibly last a couple of years. I never expected it to last 42. I take great satisfaction in that longevity. ↗
You could argue that war is always an irrational act, and yet many states enter into military conflict out of rational calculation or national interest or the stability or longevity of their regime. ↗