Final answer:
Louis Pojman ponders the ability to prove general negative claims and highlights that affirmative claims require proof. Philosophy grapples with the nature of certainty, with post-modernism suggesting that our understanding of reality is subjective, while Plato suggests some objective truths can be universally agreed upon.
Step-by-step explanation:
Louis Pojman is a philosopher who contemplates the nature of certainty and proof. In philosophy, it is recognized that one cannot prove a general negative claim. Those asserting affirmative claims carry the burden of proof among reasoning beings. This applies to various assertions, from the existence of purple elephants to the claim of a single Supreme Being. Philosophers find it exceedingly difficult to prove miracles, and some have concluded that none have been proven thus far.
The pursuit of knowledge and the challenge of post-modernism introduce the notion that since absolute certainty about reality is elusive, discussions about reality are based on subjective interpretations, or what Pojman refers to as reality 3. Meanwhile, Plato's belief that certain truths, like mathematical facts, can be universally acknowledged reflects a search for objective truths amidst subjective interpretations. The essence of this philosophical inquiry lies in contemplating the nature of reality, truth, and certainty, a journey that nurtures critical thinking and opens minds to the various perspectives and interpretations of the world.