My first grade nun had instructed me that from those to whom much is given, much is expected. I was learning that this lesson had to be combined with Shakespeare's wisdom that one must 'to thine own self be true.' Add to this humility, empathy, a sense of curiosity, courage, and plain old hard work, and I was finally seeing the real path to leadership. Of course, humor is always a plus. (158)

Meaning: Your own mistakes can teach caution, but another person’s experience may offer the same lesson without the same cost. Listen for relevant lessons before repeating an avoidable error.

Meaning: Decisive action can create opportunities that hesitation misses. Courage may help someone benefit from an opening, though it cannot control luck or guarantee success.

Meaning: Another worker can often find something to improve in work already considered finished. The second barber’s remaining task suggests that completion depends on standards and perspective, without proving that earlier work was careless or endless correction is necessary.

Meaning: A lesson that costs something can make its consequences easier to remember. The saying values learning from experience, without requiring costly mistakes or treating every painful experience as an improvement.