The worst vice of a fanatic is his sincerity.

The worst vice of a fanatic is his sincerity.

Wisdom becomes nonsense in the mouth of a fanatic.

Wisdom becomes nonsense in the mouth of a fanatic.

I wish there were some cure, like the lover's leap, for all heads
of which some single idea has read more

I wish there were some cure, like the lover's leap, for all heads
of which some single idea has obtained an unreasonable and
irregular possession.

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

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

Fanaticism is overcompensation for doubt.

Fanaticism is overcompensation for doubt.

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

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

Fanatical religion driven to a certain point is almost as bad as
none at all, but not quite.

Fanatical religion driven to a certain point is almost as bad as
none at all, but not quite.

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 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.