"I don't know why you would avoid this simple request if you have confidence in your beliefs. Would you care to tell me?"
Obama’s Mixed Inaugural Rhetoric:
http://www.atlassociety.org/cth-43-2128-Obama_Inaugural.aspx
Thought on Racial Thinking:
http://www.atlassociety.org/cth-43-2125-Thoughts_on_Racial.aspx
Your simply request is simply answered by reading Rand's piece. I won't waste time summarizing what she said so well. If you see a fatal flaw in her approach, post about that.
One other point: She makes the positive case for her understanding of morality. Religious people need to do the same and simply can't appeal to pronouncements in ancient books. Rand starts with axioms, turns to relevant facts such as the life-based foundations of choice and ethics, and ties her understanding together using tight logic. And she rightly argues that this rational appraoch is the only route to knowledge.
You need to show how your non-rational, faith-based approach to knowledge can be validated which, by its nature, it can't be, which is why religions always differ in terms of the absurd things they postulate and have no basis by which to determine the truth.