Process and Reality (1929) is Alfred North Whitehead's opus explicating the Philosophy of Organism, a philosophy of subjectivity as process itself. Also called process philosophy, Whitehead's paradigm laid the ground work for a paradigm of subjectivity, which Whitehead calls a "completed metaphysical language." (p. 18)

Page 471 reveals:

"We diverge from Descartes by holding that what he has described as primary attributes of physical bodies, are really the forms of internal relationships between actual occasions. Such a change of thought is the shift from materialism to Organic Realism, as a basic idea of physical science."