Baruch Spinoza Quotes
The terms good and bad indicate no positive quality in things regarded in themselves, but are merely modes of thinking or notions, which we form from the comparison of things one with another. Thus one and the same thing can be at the same time good, bad, and indifferent. For instance, music is good for him that is melancholy, bad for him that mourns; for him that is deaf; it is neither good nor bad.
Spinoza, Benedict de. The Chief Works of Benedict de Spinoza. Translated by R. H. M. Elwes, vol. 2, George Bell and Sons, 1883, p. 189.
Baruch (de) Spinoza was a Dutch philosopher of Portuguese Sephardi origin. One of the early thinkers of the Enlightenment and modern biblical criticism, including modern conceptions of the self and the universe, he came to be considered one of the great rationalists of 17th-century philosophy. Inspired by the groundbreaking ideas of René Descartes, Spinoza became a leading philosophical figure of the Dutch Golden Age. Spinoza's given name, which means "Blessed", varies among different languages. In the Netherlands he used the Portuguese name Bento. In his Latin and Dutch works, he used Latin: Benedictus de Spinoza.