"All mass movements generate in their adherents a readiness to die and a proclivity for united action; all of them, irrespective of the doctrine they preach and the program they project, breed fanaticism, enthusiasm, fervent hope, hatred and intolerance; all of them are capable of releasing a powerful flow of activity in certain departments of life; all of them demand blind faith and singlehearted allegiance. All movements, however different in doctrine and aspiration, draw their early adherents from the same types of humanity; they all appeal to the same types of mind. Though there are obvious differences between the fanatical Christian, the fanatical Mohammedan, the fanatical nationalist, the fanatical Communist and the fanatical Nazi, it is yet true that the fanaticism which animates them may be viewed and treated as one. The same is true of the force which drives them on to expansion and world dominion. There is a certain uniformity in all types of dedication, of faith, of pursuit of power, of unity and of self-sacrifice. There are vast differences in the contents of holy causes and doctrines, but a certain uniformity in the factors which make them effective. He who, like Pascal, finds precise reasons for the effectiveness of Christian doctrine has also found the reasons for the effectiveness of Communist, Nazi and nationalist doctrine. However different the holy causes people die for, they perhaps die basically for the same thing."