All the problems of the world could be settled easily if men were only willing to think. The trouble is that men very often resort to all sorts of devices in order not to think, because thinking is such hard work.

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: People working in the same trade may compete or disagree despite their shared occupation. The proverb highlights rivalry among peers, without establishing that cooperation is rare or that professional differences are personal hostility.