It is not necessary to understand things in order to argue about them.
Source: In Webster's Electronic Quotebase, ed. Keith Mohler, 1994.
-- Pierre de Beaumarchais, (Jan 24 1732-1799), French dramatist; He wrote two outstanding comedies of intrigue that still popular today -- The Barber of S?ville, 1775, and The Marriage of Figaro, 1785.