To me the statement of what we decide to master defines us is a reminder of the importance of finding your one thing. Oftentimes, I see people that have gone absolutely all in mastering something that has no meaningful impact on their life, their business, or their anything else for that matter. The most successful people in the world are not only clear on the one thing that will move their business (life, finances, relationships, etc) forward, they’ve chosen to absolutely master it. What have you mastered? Do you spend all of your time, energy, and effort mastering identifying every possible problem that could derail you? Have you mastered spreadsheets to track everything? Have you mastered hiding, excuses, or have you actually mastered something that matters?