The fanatic is incorrigible: if he would be cured, he must first wish to be cured.

Fanatics are fools who follow their hearts instead of their minds.
Fanatics are picturesque, mankind would rather see gestures than listen to reasons.
Fanaticism consists in redoubling your effort when you have forgotten your aim.
Fanatics are defined by their hatred, not their love.
A fanatic is someone who redoubles his effort when he has forgotten his aim.
A fanatic is one who sticks to his guns whether they're loaded or not.
Fanaticism soberly defined is the false fire of an overexcited mind.
Fanaticism soberly defined, is the false fire of an overexcited mind.
The fanatic is one who can't change his mind and won't change the subject.
The fanatical mind is highly sensitive, and easily hurt.
Fanatics are people who can't change their minds and won't change the subject.