Socrates, Plato, Jesus, Buddha and countless other mystics, in countless cultures, have preached the same thing -- that we all exist amid a blur of uncertainty. That one can never know complete truth about physical reality via our senses alone. Much is made of the differences between their systems... Socrates teaching reason, Buddha urging meditation, and Jesus prescribing faith. But what they all had in common was far more important. Each of those sage-prophets worried that the power of human egotism tends to make us lie to ourselves, leading to error, hypocrisy, and all too often, the rationalization of evil actions.