We’re all beset with difficulties, obstacles, pain, exhaustion, and a thousand other setbacks, small and large. What determines whether we take these setbacks in stride or let them bring us down is something psychologists call “resilience.” It’s the ability to bounce back from setbacks and adapt, learn, and persevere. I’ve found resilience to be an important factor in my own journey, from struggling through financial and health changes over the years to navigating the scary and uncertain waters of running my own business. Resilience has allowed me to run several marathons despite injuries, write numerous books amid personal challenges, face a declining income with a positive attitude, raise six kids (with help from my wife) no matter what difficulties they face, and deal with deaths in the family with an open heart, finding compassion for my own grief and helping my family members in the midst of theirs. None of …