The worst vice of a fanatic is his sincerity.

The worst vice of a fanatic is his sincerity.

Fanaticism is overcompensation for doubt.

Fanaticism is overcompensation for doubt.

The fanatic is incorruptible: if he kills for an idea, he can just as well get himself killed for one; read more

The fanatic is incorruptible: if he kills for an idea, he can just as well get himself killed for one; in either case, tyrant or martyr, he is a monster.

There is nobody as enslaved as the fanatic, the person in whom one impulse, one value, has assumed ascendancy over read more

There is nobody as enslaved as the fanatic, the person in whom one impulse, one value, has assumed ascendancy over all others.

Fanaticism consists of redoubling your efforts when you have
forgotten your aim.

Fanaticism consists of redoubling your efforts when you have
forgotten your aim.

There is no place in a fanatic's head where reason can enter.

There is no place in a fanatic's head where reason can enter.

There is no strong performance without a little fanaticism in the performer.

There is no strong performance without a little fanaticism in the performer.

In the history of mankind, fanaticism has caused more harm than vice

In the history of mankind, fanaticism has caused more harm than vice

As any action or posture long continued will distort and
disfigure the limbs; so the mind likewise is crippled read more

As any action or posture long continued will distort and
disfigure the limbs; so the mind likewise is crippled and
contracted by perpetual application to the same set of ideas.