Whats wrong with stealing? Whats the best way to blood test a pot-bellied pig? Should we tolerate intolerance? In the wake of his enormously popular books The Armchair Economist & More Sex is Safer Sex Steven Landsburg uses concepts from maths economics & physics to address the big questions in philosophy: Where does knowledge come from? Whats the difference between right & wrong? Do our beliefs matter? Is it possible to know everything? Provocative utterly entertaining & always surprising The Big Questions challenges readers to re-evaluate their most fundamental beliefs & reveals the relationship between the loftiest philosophical quests & our everyday lives.