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

Never build your emotional life on the weaknesses of others.

Aim high, and you won't shoot your foot off.

We call Japanese soldiers fanatics when they die rather than surrender, whereas American soldiers who do the same thing are called heroes.

If the freedom of religion, guaranteed to us by law in theory, can ever rise in practice under the overbearing inquisition of public opinion, then and only then will truth, prevail over fanaticism

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