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Mental Causation The term “mental causation” applies to causal transactions involving mental events or states, such as beliefs, desires, feelings, and perceptions. Typically, the term is used to refer to cases where a mental state causes a physical reaction: for instance, the mental state of perceiving a Frisbee flying your way can cause the physical event of your springing up to catch it. It should
Galen (130—200 C.E.) Galen was one of the most prominent ancient physicians as well as a philosopher (though most of his philosophical writings are lost). Nonetheless, his philosophical interests are quite evident in his practice of biological science. Galen made some key anatomical observations (though most of these were on other primates). However, this inclination toward observation moved his theory into the class of critical
Miracles The term “miracle” is used very broadly in ordinary language. A quick review of news stories may turn up reports such as that of a “Christmas Miracle,” by which the Texas gulf coast came to be blanketed with snow by a rare storm. We speak of miracle drugs, or of miracle babies, and some household products purport to be miraculous as well. Philosophical discussion
The Sophists (Ancient Greek) The sophists were itinerant professional teachers and intellectuals who frequented Athens and other Greek cities in the second half of the fifth century B.C.E. In return for a fee, the sophists offered young wealthy Greek men an education in aretē (virtue or excellence), thereby attaining wealth and fame while also arousing significant antipathy. Prior to the fifth century B.C.E., aretē was
Two-Dimensional Semantics Two-dimensional (2D) semantic theories distinguish between two different aspects, or ‘dimensions’, of the meaning of linguistic expressions. Many other theories identify the meaning of an expression with a dependency of its extension on the state of the world. (The extension of a sentence is its truth-value, and the extension of a sub-sentential expression is the object or objects it applies to.) Consider the
Gottfried Leibniz: Metaphysics The German rationalist philosopher, Gottfried Wilhelm Leibniz (1646-1716), is one of the great renaissance men of Western thought. He has made significant contributions in several fields spanning the intellectual landscape, including mathematics, physics, logic, ethics, and theology. Unlike many of his contemporaries of the modern period, Leibniz does not have a canonical work that stands as his single, comprehensive piece of philosophy. Instead,