Joel Hagstrom- Pyrrho the original Skeptic

The ancient Greek philosopher Pyrrho was known as one of the first skeptics.  By questioning everything and finding little concrete answers to the questions he was asking, Pyrrho concluded that since nothing can be known the only proper attitude in life should be ataraxia.  Ataraxia is the term used to describe "freedom from worry."  Are there any definite answers to any questions that we ask?  Or is everything just a matter of opinion, where the opinions that gain the most widespread acceptance become known as the truth?  I think that questioning the things around us that make up our reality is an important thing, but there are fundamental truths.  The idea that we exist and have our own thoughts separate from the world around us can provide the basic building foundation to begin questioning the things around us as we build our own "concrete" reality for ourselves.  There is no universal reality though.