Richard Taylor, an eminent ethicist, writes,
The modern age, more or less repudiating the idea of a divine lawgiver, has nevertheless tried to retain the ideas of moral right and wrong, not noticing that, in casting God aside, they have also abolished the conditions of meaningfulness for moral right and wrong as well. Thus, even educated persons sometimes declare that such things are war, or abortion, or the violation of certain human rights, are ‘morally wrong,’ and they imagine that they have said something true and significant. Educated people do not need to be told, however, that questions such as these have never been answered outside of religion.
Contemporary writers in ethics, who blithely discourse upon moral right and wrong and moral obligation without any reference to religion, are really just weaving intellectual webs from thin air; which amounts to saying that they discourse without meaning.
Richard Taylor, Ethics, Faith, and Reason (Englewood Cliffs, N.J.: Prentice-Hall, 1985), pp. 2-3.