Cannabis Sativa October 12, 2016October 12, 2016 thcscience_admin The main article for this category is Baruch Spinoza. Pages in category "Works by Baruch Spinoza" The following 7 pages are in this category, out of 7 total. This list may not reflect recent changes. E Epistolae (Spinoza) Ethics (Spinoza book)L List of Epistolae (Letters) of SpinozaP Principia philosophiae cartesianaeT Tractatus de Intellectus Emendatione Tractatus Politicus Tractatus Theologico-Politicus