 Something similar to the Library Bill of Rights could be retained as an accompanying "aspirational creed", such as a revised form of the ALA Code of Ethics, but it would need to provide more practical guidance.David Woolwine of Hofstra University has criticized the philosophical underpinnings of the Library Bill of Rights, specifically objecting to the use of utilitarianism and "rights discourse" in defense of the principles.The "moral calculus" of the utilitarian argument that free access of information produces the greatest good for the greatest number can also be used to argue in support of restrictions for the purposes of safety and national security.