A radical is a man with both feet firmly planted — in the air. A conservative is a man with two perfectly good legs who, however, has never learned to walk forward. A reactionary is a somnambulist walking backwards. A liberal is a man who uses his legs and his hands at the behest — at the command — of his head.
—Franklin D. Roosevelt (1882–1945) American Head of State, Lawyer
Fanaticism obliterates the feelings of humanity.
—Edward Gibbon (1737–94) English Historian, Politician
In the history of mankind, fanaticism has caused more harm than vice.
—Louis Kronenberger (1904–80) American Drama, Literary Critic
The most dangerous madmen are those created by religion, and people whose aim is to disrupt society always know how to make good use of them on occasion.
—Denis Diderot (1713–84) French Philosopher, Writer
Everybody knows that fanaticism is religion caricatured, and yet, with many, contempt of fanaticism is regarded as a sign of hostility to religion.
—Edwin Percy Whipple (1819–86) American Literary Critic
A fanatic is one who can’t change his mind and won’t change the subject.
—Winston Churchill (1874–1965) British Head of State, Political leader, Historian, Journalist, Author
If you see one cold and vehement at the same time, set him down for a fanatic.
—Johann Kaspar Lavater (1741–1801) Swiss Theologian, Poet