41. Raphael's School of Philosophy, in the Vatican Museum, and I've taught this in so many Classics classes, and it's Michelangelo down front, almost centre and resting on his marble block, but pretending to be Heraclitus, who argued that no man ever steps in the same river twice and it's Michelangelo again, centre back, posing as Plato in the blue cloak pointing to the earth, while Leonardo da Vinci, posing as Aristotle, points to the heavens, and both are ignoring Pope Julius II, being the one in orange and who commissioned this piece, while Euclid gives a geometry lesson down stage right, while behind him, Ptolemy is holding a globe of the earth and is perhaps explaining latitude and longitude, while Zoroaster holds an almost identical globe, but of the heavens, and who first introduced the idea of monotheism, behind them is Plotinus, who argued the philosophy of an indivisible one-ness of everything, while Socrates himself holds forth up stage left and maybe he's asking Alciabades, who's wearing the propeller hat, to define something that's true in all possible circumstances, while the pathologically narcissistic Diogenes slouches all over the steps and possibly wonderin' where the feck he may have left his lamp, while Epicurus on the far left wears a wreath of vines and maybe contemplates the perfect souvlaki, and being ignored by Pythagoras who's probably explaining the hypotenuse of a right angle triangle, and the figure in white may be either Raphael himself, or Aspasia, Pericles' mistress, and who is rumoured to have taught Socrates how to dance, while midstage centre right, in the brown tunic, is the kiddie waiting for Guns n' Roses to use their illusions, and yes, I've seen this for real, twice.