Do not conform to the pattern of this world, but be transformed by the renewing of your mind. Then you will be able to test and approve what God’s will is—his good, pleasing and perfect will. (Romans 12:2 NIV)
There is continual stress that we conform to the concepts of the world around us. In some ways this is necessary, adhearing to a set of social norms. However, we must have our own code, because social norms may not always be consistent with our values.
The key is that we must have something beyond ourselves that we place as a measure of these norms and even our values. Man, in and of himself, may not make the best choices. But when we look beyond ourselves and accept Godly direction we become transformed.