In the middle of the 16th century, a 22-year-old law student in France named Etienne de la Boétie wrote an essay entitled "Discourse of Voluntary Servitude" that was circulated among academics for ...

Systems theory was not originally a business theory. Indeed, systems theory was proposed in the 1940s by biologist Ludwig von Bertalanffy, say Francis Heylighen and Cliff Joslyn in their article, ...

All bodies in a given gravitational field are thought to fall with the same acceleration. This idea, known as the equivalence principle, is central to our understanding of gravitational physics. It ...