The phrase 'quantity has a quality all its own' is commonly attributed to Joseph Stalin. Checking the quotation instead found an attribution to analyst Thomas A. Callaghan Jr. in 1979. That finding is offered cautiously as a correction to an earlier assumption rather than a reason to discard the underlying force-structure point. Even plausible and widely repeated attributions deserve source criticism.
Notable Point · 28:42-29:31
Tracing the 'quantity has a quality' quotation
A familiar defence saying becomes a compact lesson in checking the provenance of quotations before building an argument around them.