Question: Does being rational mean having faith in reason? I'm a high school student in a religious school. Many of my classmates claim that my belief in a knowable reality, science, and reason is merely a form of faith. So how can a person validate his own reason and senses? How can a person know that they are reliable means of knowing reality – unless he uses them and thereby engages in circular reasoning? My classmates claim that God is the only way out of this puzzle: God checks our reasoning by verifying and opposing our various conclusions. How can I respond to their arguments effectively?

Tags: Axioms, Epistemology, Faith, Foundationalism, Logic, Metaphysics, Perception, Proof, Rationality, Reason, Reason

Question: Are concepts of color objective? Given that people from different cultures conceptualize colors differently, I don't see how concepts of color – or at least the demarcation of colors – can be objective. For example, in English, the colors "green" and "blue" have different names because they refer to different concepts. In Japanese, however, the word "aoi" can refer to either light green or blue: they don't draw a distinction between them. Similarly, English speakers refer to both the sky and a sapphire as "blue." But in Italian this is not the case: the word "blu" only refers to dark blue, and the sky is the distinct color of "azzuro." Do such cultural differences cast doubt on the claim that concepts of color are objective?

Tags: Color, Concepts, Epistemology, Objectivity, Perception