How to Improve Your Mind is an engaging philosophical text by master Enlightenment thinker Baruch Spinoza. This edition includes exclusive commentary and biographical notes written by Philosophical Library s founding publisher, Dagobert D. Runes. Baruch Spinoza (1632 1677) is heralded as one of the most influential and radical philosophers of the Enlightenment. An expert on the Talmud and Jewish scriptures, Spinoza is known for his moral philosophy and his views on theology and ethics. He devoted his life to the study of philosophy and Judaism and wrote several philosophical texts throughout his career, including his most extensive and famous tome, Ethics.