“It is at work everywhere, functioning smoothly at times, at other times in firs and starts. It breathes, it heats, it eats. It shits and fucks. What a mistake to have ever said the id. Everywhere it is machines- real ones, not figurative ones: machines driving other machines, machines being driven by other machines, with all the necessary couplings and connections. An organ-machine is plugged into an energy-source-machine: the one produces a flow that the other interrupts The breast is a machine that produces miilk, and the mouth a machine coupled to it.”

On Computable Numbers, with an Application to the Entscheidungsproblem (1936)

Source: Zen and the Art of Motorcycle Maintenance: An Inquiry Into Values

Introduction, Beast and Man: The Roots of Human Nature (1979).
Context: Consideration of motives brings up the matter of free will. I had better say once, that my project of taking animal comparisons seriously does not involve a slick mechanistic or deterministic view of freedom. Animals are not machines; one of my main concerns is to combat this notion. Actually only machines are machines.

Source: The Prefect (2007), Chapter 5 (p. 54)

Knowing Yourself: The True in the False (1996)

8 March, 2016
As President, 2016
Source: El País http://elpais.com/elpais/2016/03/08/videos/1457457914_756232.html

Source: A Thousand & One Epigrams: Selected from the Writings of Elbert Hubbard (1911), p. 151

statement of Lissitzky, 1924; as quoted by Paul Galvez, in 'Self-Portrait of the Artist as a Monkey-Hand October', Vol. 93, (Summer, 2000), published by The MIT Press, pp. 109-137
1915 - 1925

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995)