What IS good, and how do we determine it?

[Mister Agenda]

Muehlhauser continues:

Do those arguments look familiar? They should. They are the exact same arguments atheists reject when they are given for the existence of God. Atheists are skeptical of these arguments when given for the existence of God, but they are credulous and gullible toward these arguments when you replace the word “God” with another mysterious thing called “moral truths.”…It would be hypocritical for me to reject subjective experience and popular consensus as evidence for God while at the same time accepting subjective experience and popular consensus for moral realism.

(Luke Muehlhauser. “Many Atheists are Hypocrites about Morality,” Common Sense Atheism, May 9, 2010. Available online at: http://commonsenseatheism.com/?p=8859)

Except axioms are pretty much inescapable in philosophy. You can debate whether a particular postulate is self-evident enough to be a valid axiom, but at some point your reasoning has to rest on something that can't be proven. It's a virtue to minimize your axioms, but it's no sin (not even hypocrisy) to have a few.