Spinoza: Practical Philosophy

Spinoza: Practical Philosophy (French: Spinoza: Philosophie pratique) (1970; second edition 1981) is a book by the philosopher Gilles Deleuze, in which the author examines Baruch Spinoza's philosophy, discussing Ethics (1677) and other works such as the Tractatus Theologico-Politicus (1670), providing a lengthy chapter defining Spinoza's main concepts in dictionary form. Deleuze relates Spinoza's ethical philosophy to the writings of Friedrich Nietzsche and Willem van Blijenbergh, a grain broker who corresponded with Spinoza in the first half of 1665 and questioned the ethics of his concept of evil. The work has received praise from commentators.