Faith in a holy cause is to a considerable extent a substitute for the lost faith in ourselves.
Take away hatred from some people, and you have men without faith.
Vehemence is the expression of a blind effort to support and uphold something that can never stand on its own... Whether it our own meaningless self we are upholding, or some doctrine devoid of evidence, we can do it only in a frenzy of faith.
It is startling to realize how much unbelief is necessary to make belief possible. What we know as blind faith is sustained by innumerable unbeliefs.