 Note on citation form. Citations to Spinoza's Ethics give the part in roman capitals, then the proposition, definition, or axiom number, (e.g., p13, or d5)), and then specify whether the cited material is in a scholium (s), corollary (c), or lemma (l). Citations to other works are given in the same style, except that they are prefaced by the abbreviated title of the work, in italics (e.g., “PCP ” for Principles of Cartesian Philosophy).