"I do not, therefore, say that the word "progress" is unmeaning; I say it is unmeaning without the previous definition of a moral doctrine, and that it can only be applied to groups of persons who hold that doctrine in common. Progress is not an illegitimate word, but it is logically evident that it is illegitimate for us. It is a sacred word, a word which could only rightly be used by rigid believers and in the ages of faith."