Anselm of Canterbury (1033—1109) Saint Anselm was one of the most important Christian thinkers of the eleventh century. He is most famous in philosophy for having discovered and articulated the so-called “ontological argument;” and in theology for his doctrine of the atonement. However, his work extends to many other important philosophical and theological matters, among which are: understanding the aspects and the unity of the

Egoism In philosophy, egoism is the theory that one’s self is, or should be, the motivation and the goal of one’s own action. Egoism has two variants, descriptive or normative. The descriptive (or positive) variant conceives egoism as a factual description of human affairs. That is, people are motivated by their own interests and desires, and they cannot be described otherwise. The normative variant proposes

Locke: Knowledge of the External World The problem of how we can know the existence and nature of the world external to our mind is one of the oldest and most difficult in philosophy. The discussion by John Locke (1632-1704) of knowledge of the external world have proved to be some of the most confusing and difficult passages of his entire body of philosophical work.

Time Travel Time travel is commonly defined with David Lewis’ definition: An object time travels if and only if the difference between its departure and arrival times as measured in the surrounding world does not equal the duration of the journey undergone by the object. For example, Jane is a time traveler if she travels away from home in her spaceship for one hour as

Ismaili Philosophy Ismailism belongs to the Shi‘a main stream of Islam. Recent scholarship, based on a more judicious analysis of primary sources, has shown how Ismaili thought was in constant interaction with and to a certain extent influenced well-known currents of Islamic philosophy, theology, and mysticism. Shi‘i and Ismaili philosophy use ta’wil as a tool of interpretation of scripture. This Qur’anic term connotes going back