“…The reason for the equilibrium itself—i.e., for the fact that Thought and Being are coextensive—is the natures of existence and Thought, and therefore the co‐extensiveness of Thought and existence is not brute, and we have no reason that compels us to identity Thought and Being (see my “Rationalism, Idealism and Monism in Spinoza”). For Della Rocca’s attempt to reconcile his view with the conceptual barrier among the attributes (E1p10), see his ”Rationalism, Idealism, Monism, and Beyond.” For an insightful attempt to defend Della Rocca’s “the twofold use of the PSR” without embracing idealism, see Newlands “Another Kind of Spinozistic Monism.” For an earlier commentator who was led by the co‐extensiveness of Thought and Being to ascribe idealism to Spinoza, see Pollock, Spinoza , 161–2.…”