In their doubt of miracles there was a faith in a fixed and godless fate; a deep and sincere faith in the incurable routine of the cosmos. The doubts of the agnostic were only the dogmas of the monist. (G. K. Chesterton)
Who was he referring to?
The late nineteenth early twentieth century materialists, I think. But there is something of a parallel to those today who find 'miracles' difficult. Sometimes it just seems that they exclude God from the picture, or make God an inhabitant of the universe who must therefore obey the rules!