Meets with CAS HI 514 and PH 412. Explores how eighteenth-century criticisms of the Enlightenment have been taken up by twentieth-century thinkers such as Heidegger, Horkheimer, Adorno, Gadamer, and Foucault; discusses recent defenses of Enlightenment ideals of reason, critique, and autonomy by Habermas and others. This course cannot be taken for credit in addition to the course with the same title that was previously numbered CAS PO 693.