Pierre(-Augustin Caron de) Beaumarchais, 1739-1799
was a French dramatist
It is not necessary to understand things in order to argue about them.
Albert Einstein, 1879-1955
was an US (German-born) physicist
Peace cannot be kept by force. It can only be achieved by understanding.
George Orwell (Eric Arthur Blair), 1903-1950
was an English essayist, novelist, and satirist
By lack of understanding they remained insane.