Fortitude can be developed. This is contrary to many people’s thought processes. I recently finished reading Duckworth’s book, “Grit, The Power of Passion and Perseverance.” I couldn’t help but mentally cross-reference with Keller’s book, “The One Thing.” I recommend both books. Combined they provide a good insight into gaining, maintaining, and applying fortitude. The ONE Thing In Keller’s book, he talks about being successful but burned out, due to attempting to accomplish many things simultaneously. He changed his work pattern and focus to the ONE thing that would be most beneficial to him. He attained even greater success and has become an advocate for others to change their thinking. Keller suggests we ask ourselves this question. “What is the ONE thing I can do, such that by doing it, makes everything else easier or unnecessary?” This one question, when answered, is the takeaway from this book. It truly changes your thinking and your focus. The reality is that there are still ot...