“The Method tends to be linear, almost like a 19th century mechanistic way of thinking in its search for a cause that produces the desired effect.”

Source: The Mechanism of Economic Systems (1953), p. ix

Source: Doctor Faustus (1947), Ch. 15

in
Context: If one was sometimes led astray by trying to simplify the elements of a science, it is because one has established systems before putting together a fairly large number of facts. Some assumption, which would be very simple when one considers only a class of phenomena, requires many other assumptions if one wants to leave the narrow circle in which we had initially withdrawn. If nature has offered to produce the maximum effect with minimum causes, it is in all of its laws that it had to solve this major problem. It is without doubt difficult to discover the foundations of this wonderful economy, i. e. the simplest causes of phenomena considered from such a wide point of view. But if this general principle of the philosophy of physics does not lead immediately to the knowledge of truth, it can direct the efforts of the human spirit, by leading it away from theories which relate the phenomena to too many different causes, and by adopting preferably those based on the smallest number of assumptions, which show to be more fruitful in consequences.

From Critique of Everyday Life: Volume 1 (1947/1991)
Context: The method of Marx and Engels consists precisely in a search for the link which exists between what men think, desire, say and believe for themselves and what they are, what they do. This link always exists. It can be explored in two directions. On the one hand, the historian or the man of action can proceed from ideas to men, from consciousness to being - i. e. towards practical, everyday reality - bringing the two into confrontation and thereby achieving archieving criticism of ideas by action and realities. That is the direction which Marx and Engels nearly always followed in everything they wrote; and it is the direction which critical and constructive method must follow initially if it is to take a demonstrable shape and achieve results.
But it is equally possible to follow this link in another direction, taking real life as the point of departure in an investigation of how the ideas which express it and the forms of consciousness which reflect it emerge. The link, or rather the network of links between the two poles will prove to be complex. It must be unravelled, the thread must be carefully followed. In this way we can arrive at a criticism of life by ideas which in a sense extends and completes the first procedure.

Robert Grosseteste and the Origins of Experimental Science 1100-1700 (1953)

Source: There's Treasure Everywhere

Source: 1970s, Redesigning the future, 1974, p. 10.

On Progress: Its Law and Cause
Essays on Education (1861)