The interrelation between "processes" and "structures" is addressed in this article with a discussion of quantum theory and classical physics, on the one hand and pragmatic theories of meaning and structuralist ones, on the other. It is concluded that just as quantum theory needs the apparatus of classical physics to establish its own phenomena, pragmatic theories need structuralist apparatus to establish their own. It is argued that both in the case of quanta as in that of meaning, measurement procedures create similar relations of uncertainty: Heisenberg relations in physics and Meadian relations in sociopsychology.The relationship between the processes of the world, and the forms in which these processes subsist has been a perennial issue in philosophy and the social sciences. Alfred North Whitehead (1929) quoted the lines from the hymn Abide with me; Fast falls the eventide.as emblematic of this confrontation between processes and what may be termed structures. He wrote,