Passage Summary: Even if you think beauty is in the eye of the beholder, you have to admit some artists are just better at doing what they set out to do. However, the author argues we should judge that skill based on what the artist was actually trying to achieve, not just how realistic the art looks.

Conclusion: Artistic superiority should be evaluated based on the specific goals and purposes of the artist.

Reasoning: Even those who believe standards are relative admit some painters execute their visions better than others, and artists like Toledo are highly skilled even when their work is not realistic.

Analysis: This sentence acts as a common ground or a 'concession' that the author uses to build their main point. It establishes a baseline fact—that skill exists—before the author pivots to the specific criteria for how we should evaluate that skill. We aren't debating if some artists are better; we are debating the standard of measurement. Identifying this as a premise or a starting point for the author's specific rule is key.