The enlightenment's key progenitors, led by Montesquieu, Voltaire and Diderot, were more empiricist than rationalist, and more critical than utopian. Moreover, each was an artful exponent of the 'proto-postmodernist' practice of asking Europeans to review what they considered unquestionable through the eyes of Others: Persians, women, Tahitians, Londoners, natives and naïves, the blind, and even imaginary extra-terrestrials. This book aims to show that this self-estrangement, as a means to gain critical distance from one's taken-for-granted assumptions, was central to the enlightenment, and remains vital for critical and constructive sociopolitical thinking today.