The book "Philosophical Essays on Probability" by the famous French mathematician and physicist, Marquis Laplace, is a remarkable work that reflected his deep thoughts about probability and its application in various fields of science. In this book, the author considers the concept of probability as a fundamental principle underlying many scientific studies. Laplace argues the importance of using a probabilistic approach to solving problems in physics, mathematics, economics, and other fields. In his essay, the author considers not only the mathematical aspect of probability, but also the philosophical aspects related to the concept of randomness and determinism. Laplace expresses his own thoughts on the relationship between random events and the laws of nature, exploring the relationship between natural necessity and stochasticity in the world. "Philosophical Essays on Probability" is not only an important work for the scientific world, but also a fundamental text that encourages deep thinking about the nature of random phenomena and their impact on our understanding of the world.