Which philosopher wrote the work "Leviathan" and believed people are inherently selfish?

Thomas Hobbes wrote the work "Leviathan," in which he discusses his views on human nature and the necessity of a strong central authority to maintain order. Hobbes posits that humans are inherently selfish, driven by their desires and instincts. According to him, in a state of nature—where there is no government—people would act according to their self-interest, leading to a chaotic and dangerous environment. This perspective supports his argument for an absolute sovereign who can impose order and protect individuals from one another. Hobbes’ views mark a significant point in political philosophy, contrasting sharply with other thinkers who might emphasize the cooperative or rational aspects of human nature. His assertions in "Leviathan" laid the groundwork for modern political theory and continue to influence discussions on the role of government and human behavior.