Assertion: devil | /r/HasProperty | the keystone of the arch
Facets:
value: really
type: DEGREE
Source sentences:
text: A little while ago I delivered a lecture on "Superstition," in which, among other things, I said that the Christian world could not deny the existence of the Devil; that the Devil was really the keystone of the arch, and that to take him away was to destroy the entire system.
text: The Devil is the keystone of the arch.