“The old dualistic notion of mind and matter, so prominent in Cartesianism, as two radically different kinds of substance, will hardly find defenders to-day. Rejecting this, we are driven to some form of hylopathy, otherwise called monism.”
The Architecture of Theories (1891)
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Charles Sanders Peirce 121
American philosopher, logician, mathematician, and scientist 1839–1914Related quotes
Source: The Next Development in Man (1948), p. 193-194

Source: The Limits of Evolution, and Other Essays, Illustrating the Metaphysical Theory of Personal Ideaalism (1905), Preface to Second Edition, p.xlvi
A Short History of Chemistry (1937)
Context: The first clear expression of the idea of an element occurs in the teachings of the Greek philosophers.... Aristotle... who summarized the theories of earlier thinkers, developed the view that all substances were made of a primary matter... On this, different forms could be impressed... so the idea of the transmutation of the elements arose. Aristotle's elements are really fundamental properties of matter... hotness, coldness, moistness, and dryness. By combining these in pairs, he obtained what are called the four elements, fire, air, earth and water... a fifth, immaterial, one was added, which appears in later writings as the quintessence. This corresponds with the ether. The elements were supposed to settle out naturally into the earth (below), water (the oceans), air (the atmosphere), fire and ether (the sky and heavenly bodies).
Source: The Next Development in Man (1948), p. 214

2000s, 2001, The Enemy is not Islam. It is Nihilism (2001)

The History of Freedom in Christianity (1877)