Sayyid Qutb (1906—1966) Sayyid Qutb was one of the leading Islamist ideological thinkers of the twentieth century. Living and working in Egypt, he turned to Islamism in his early forties after about two decades as a secular educator and literary writer. As an Islamist, he held that all aspects of society should be conducted according to the Shari’a, that is, laws of God as derived

The Classical Theory of Concepts The classical theory of concepts is one of the five primary theories of concepts, the other four being prototype or exemplar theories, atomistic theories, theory-theories, and neoclassical theories. The classical theory implies that every complex concept has a classical analysis, where a classical analysis of a concept is a proposition giving metaphysically necessary and jointly sufficient conditions for being in

Marcus Aurelius (121—180 C.E.) The philosophy of the Roman Emperor Marcus Aurelius can be found in a collection of personal writings known as the Meditations. These reflect the influence of Stoicism and, in particular, the philosophy of Epictetus, the Stoic. The Meditations may be read as a series of practical philosophical exercises, following Epictetus’ three topics of study, designed to digest and put into practice

Scientific Change How do scientific theories, concepts and methods change over time? Answers to this question have historical parts and philosophical parts. There can be descriptive accounts of the recorded differences over time of particular theories, concepts, and methods—what might be called the shape of scientific change. Many stories of scientific change attempt to give more than statements of what, where and when change took

Yinyang (Yin-yang) Yinyang (yin-yang) is one of the dominant concepts shared by different schools throughout the history of Chinese philosophy. Just as with many other Chinese philosophical notions, the influences of yinyang are easy to observe, but its conceptual meanings are hard to define. Despite the differences in the interpretation, application, and appropriation of yinyang, three basic themes underlie nearly all deployments of the concept

Marie de Rabutin-Chantal, Marquise de Sévigné (1626—1696) Madame de Sévigné was France’s preeminent writer of epistles in the seventeenth century. She appears at first glance to possess few philosophical credentials because she neither received formal philosophical instruction nor composed philosophical treatises. Yet in her extensive correspondence, De Sévigné develops a distinctive position on the philosophical disputes of her era. Rejecting the mechanistic account of nature,