In general, we can say that the larger the system becomes, the more the parts interact, the more difficult it is to understand environmental constraints, the more obscure becomes the problem of what resources should be made available, and deepest of all, the more difficult becomes the problem of the legitimate values of the system.
p. 77; cited in John Gall (1978) Systemantics; how systems work... and especially how they fail - The Systems Approach (1968)