Full Idea
One would have to be very morally lazy to be unconcerned with the possibility that the prevailing morality of one's culture had something fundamentally wrong with it.
Gist of Idea
You would have to be very morally lazy to ignore criticisms of your own culture
Source
Thomas Nagel (MacIntyre versus the Enlightenment [1988], 203)
Book Reference
Nagel,Thomas: 'Other Minds: Critical Essays 1969-1994' [OUP 1999], p.203