The System of Nature, Or, the Laws of the Moral and Physical World. Volume 1

''The System of Nature, or, the Laws of the Moral and Physical World. Volume 1'' by Paul Henri Thiery (Baron d'Holbach) is a significant philosophical treatise written in the late 18th century. This publication stands as a foundational text in the discourse of atheistic materialism, presenting a systematic view of nature, morality, and human existence, emphasizing the inextricable connection between man and the natural world while advocating for a rational understanding that negates the existence of the supernatural. The opening of this work introduces Holbach's core beliefs regarding nature and humanity’s place within it. He argues that all beings are products of nature, subject to its immutable laws. Holbach contrasts the simplistic understandings of human existence shaped by mythology with a more profound comprehension drawn from observation and experience. He critiques humanity’s tendency to embrace irrational beliefs and calls for a return to reason, empirical inquiry, and the study of nature as the rightful basis for morality and happiness. Essential themes include the rejection of external deities and the importance of understanding human desires and actions through the lens of natural law rather than theological or mythical narratives.