Ordinarily he was insane, but he had lucid moments when he was merely stupid.
When books are burned in the end people will be burned too.
Be entirely tolerant or not at all; follow the good path or the evil one. To stand at the crossroads requires more strength than you possess.
There are more fools in the world than there are people.
The Romans would never have found time to conquer the world if they had been obliged first to learn Latin.
Where they have burned books, they will end in burning human beings. (Dort, wo man Bücher verbrennt, verbrennt man am Ende auch Menschen)