I went to work in accounting at Arthur Andersen. At one point, it was the creme de la creme. I wanted to work there because it looked like the hardest thing I could find, and I loved being on a steep learning curve. I progressed quickly, and two years out of college, I was managing a small team of people.

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: Let the person best suited to the immediate task take the lead. The dog and obstacle image values relevant capability, without making one success a permanent rank or denying others the chance to learn and contribute.

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.