SOURCE: Craig, Leon Harold. “Living in a Hard Time: Politics and Philosophy in Macbeth.” In Of Philosophers and Kings: Political Philosophy in Shakespeare's Macbeth and King Lear, pp. 25-111. Toronto: University of Toronto Press, 2001.
In the following excerpt, Craig claims that Macbeth is Shakespeare's most metaphysical work, and probes the play's concern with such philosophical issues as the nature of reality, appearance, time, contingency, and being.