Why do we need operating systems?
programmingsimplicity.substack.com"Smalltalk is a structurally reflective system which structure is defined by Smalltalk-80 objects. The classes and methods that define the system are also objects and fully part of the system that they help define" -- https://en.wikipedia.org/wiki/Smalltalk
From Dan Ingalls "Design Principles Behind Smalltalk" (https://www.cs.virginia.edu/~evans/cs655/readings/smalltalk....):
"An operating system is a collection of things that don't fit into a language. There shouldn't be one."
is the exact quote i was thinking of, thank you