There is no methodological process by which one can confirm the existence of an object independent of the confirmatory process involving oneself. The outside is a void, there is only the inside. A person's world, the inside or internal view is all that can be known. The rest can only be the object of speculation.

Karl. E. Weick, in: Barry M. Staw, Gerald R. Salancik (eds.) New directions in organizational behavior, St. Clair Press, 1977, p. 273