What does the artist mean?

In our continuing struggle to promote a higher cultural education, we present you with this rare copy of Rembrandt’s 1632 painting “The Anatomy Lecture of Dr. Nicolaes Tulp”. In this version, the artist hath summoned all his skill to capture a realistic and disturbing view into the psyche of the Amsterdam Surgeons’ Guild – in fact, so clearly doeth he achieve this that it was possible for our exceptional scholars to interpret the innermost thoughts of the characters depicted. NOTE: Thought interpretations may vary, mostly in that we are right and everyone else is wrong.