I studied the Koran a great deal. I came away from that study with the conviction there have been few religions in the world as deadly to men as that of Muhammad. So far as I can see, it is the principal cause of the decadence so visible today in the Muslim world and, though less absurd than the polytheism of old, its social and political tendencies are in my opinion to be feared, and I therefore regard it as a form of decadence rather than a form of progress in relation to paganism itself.

Muhammad brought down from heaven and put into the Koran not religious doctrines only, but political maxims, criminal and civil laws, and scientific theories. …

No protracted war can fail to endanger the freedom of a democratic country.

Life is to entered upon with courage.

The Americans combine the notions of religion and liberty so intimately in their minds, that it is impossible to make them conceive of one without the other

Had Luther and Calvin been confined before they had begun to dogmatize, the states would have been spared many troubles.

'If the early Chinese people had any chivalry, it was manifested not toward women and children, but toward old people. That feeling of chivalry found clear exp…