Don’t preach failure as a virtue, or it’s fellowship a value. It’s a disease, and when there is a hierocy of failure it’s a steel trap. The devious ply it’s wares, ask any Indian from the Canadian mosaic and your local likely to find out..
Plan for unexpected
The only thing worse then failure is to not know that it is possible. This is truly exacerbated by not having a plan to mitigate it’s effects including to others. A plan may include time as timing often turns failure to better opportunity.