"A sharp distinction must be drawn between the moral and social behavior of individuals and of social groups, national, racial and economic; and that this distinction justifies and necessitates political policies which a purely individualistic ethic must always find embarrassing." This excerpt is from which book?

The excerpt is from Moral Man and Immoral Society.

Explanation:

Moral Man and Immoral Society, is a book written by Reinhold Niebuhr in 1932,  and republished in 2002, he was a theologian and political scientist that has published several books throughout his life. In this book, Reinhold Niebuhr talks about the ethic in different aspects of society and how it is related to politics.