Thomas von Aquin (1224/6—1274) St. Thomas Aquinas was a Dominican priest and Scriptural theologian. He took seriously the medieval maxim that “grace perfects and builds on nature; it does not set it aside or destroy it.” Therefore, insofar as Thomas thought about philosophy as the discipline that investigates what we can know naturally about God and human beings, he thought that good Scriptural theology, since it

Edmund Husserl (1859–1938) Although not the first to coin the term, it is uncontroversial to suggest that the German philosopher, Edmund Husserl (1859-1938), is the “father” of the philosophical movement known as phenomenology. Phenomenology can be roughly described as the sustained attempt to describe experiences (and the “things themselves”) without metaphysical and theoretical speculations. Husserl suggested that only by suspending or bracketing away the “natural

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

Pseudoscience and the Demarcation Problem The demarcation problem in philosophy of science refers to the question of how to meaningfully and reliably separate science from pseudoscience. Both the terms “science” and “pseudoscience” are notoriously difficult to define precisely, except in terms of family resemblance. The demarcation problem has a long history, tracing back at the least to a speech given by Socrates in Plato’s Charmides,