If Wagner lived today, he would probably work with film instead of music. He already knew back then that the Great Art Form would include a sort of fourth dimension; it was really film he was talking about.

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.