clipped from: www.lewrockwell.com   
A less rigid interpretation of natural law – the one favored by individualist feminism – argues that human values should be grounded in or based upon fact. This approach is an attempt to answer the question, "given what we know about reality and human nature, is it possible to reason out universal principles of behavior that maximize human well being?" Thus, the concepts of right and wrong – or rights and duties – are discovered by reasoning from facts.