Like other modal verbs, modals of necessity are guilty of strange behavior. Learn about their feisty habits with this infographic.

Explores the stable core of Wittgenstein's philosophy as developed from the Tractatus to the Philosophical Investigations.

What They Don't Teach you at Harvard Business School

Business demands innovation. There is a constant need to feel around the fringes, to test the edges, but business schools, out of necessity, are condemned to teach the past.'

Power Lines by Anne McCaffrey

In this sequel to Powers That Be , the hardworking inhabits of the sentient planet Petaybee continue their struggles with the magnates controlling Intergal Company. While chairperson Dr. Whittaker Fiske has been convinced of the planet's intelligence--and the necessity of negotiating with it--other members of the board believe that he and the Petaybeans are suffering from a collective delusion.

A Survey of Metaphysics

A systematic overview of modern metaphysics, A Survey of Metaphysics covers all of the most important topics in the field. It adopts the fairly traditional conception of metaphysics as a subject that deals with the deepest questions that can be raised concerning the fundamental structure of reality as a whole. The book is divided into six main sections that address the following themes: identity and change, necessity and essence, causation, agency and events, space and time, and universals and particulars.