Luck Winning a lottery, being hit by a stray bullet, or surviving a plane crash, all are instances of a mundane phenomenon: luck. Mundane as it is, the concept of luck nonetheless plays a pivotal role in central areas of philosophy, either because it is the key element of widespread philosophical theses or because it gives rise to challenging puzzles. For example, a common claim

Charles Hartshorne: Neoclassical Metaphysics Charles Hartshorne (1897-2000) was an intrepid defender of the claims of metaphysics in a century characterized by its anti-metaphysical genius. While many influential voices were explaining what speculative philosophy could not accomplish or even proclaiming an end to it, Hartshorne was trying to show what speculative philosophy could accomplish. Metaphysics, he said, has a future as well as a past. He

Gottlob Frege (1848—1925) Gottlob Frege was a German logician, mathematician and philosopher who played a crucial role in the emergence of modern logic and analytic philosophy. Frege’s logical works were revolutionary, and are often taken to represent the fundamental break between contemporary approaches and the older, Aristotelian tradition. He invented modern quantificational logic, and created the first fully axiomatic system for logic, which was complete

Anaxarchus (c. 380—c. 320 B.C.E.) As a follower of Democritus, Anaxarchus developed the skeptical tendencies within Democritus’ thought. Although our information on him is extremely sketchy, he is a pivotal figure connecting the atomism of Democritus to the skepticism of Pyrrho, if ancient philosophical genealogies can be trusted. He allegedly abolished the criterion of truth by likening our experiences to those of dreamers and madmen.

Antoine Arnauld (1612—1694) Antoine Arnauld was considered by his peers as one of the preeminent 17th century European intellectuals. Arnauld had been remembered primarily as a correspondent of René Descartes, Gottfried Leibniz and Nicolas Malebranche, and as a dogmatic and uncritical Cartesian who made few if any philosophical contributions. In fact, as much newer research suggests, Arnauld was not a dogmatic and uncritical Cartesian, and

Empedocles (c. 492—432 B.C.E.) Empedocles (of Acagras in Sicily) was a philosopher and poet: one of the most important of the philosophers working before Socrates (the Presocratics), and a poet of outstanding ability and of great influence upon later poets such as Lucretius. His works On Nature and Purifications (whether they are two poems or only one – see below) exist in more than 150