So far from a political ideology being the quasi-divine parent of political activity, it turns out to be its earthly stepchild. Instead of an independently premeditated scheme of ends to be pursued, it is a system of ideas abstracted from the manner in which people have been accustomed to go about the business of attending to the arrangements of their societies. The pedigree of every political ideology shows it to be the creature, not of premeditation in advance of political activity, but of meditation upon a manner of politics. In short, political activity comes first and a political ideology follows after; and the understanding of politics we are investigating has the disadvantage of being, in the strict sense, preposterous.Let us consider the matter first in relation to scientific hypothesis, which I have taken to play a role in scientific activity in some respects similar to that of an ideology in politics. If a scientific hypothesis were a self-generated bright idea which owed nothing to scientific activity, then empiricism governed by hypothesis could be considered to compose a self-contained manner of activity; but this certainly is not its character. The truth is that only a man who is already a scientist can formulate a scientific hypothesis; that is, an hypothesis is not an independent invention capable of guiding scientific inquiry, but a dependent supposition which arises as an abstraction from within already existing scientific activity. Moreover, even when the specific hypothesis has in this manner been formulated, it is inoperative as a guide to research without constant reference to the traditions of scientific inquiry from which it was abstracted. The concrete situation does not appear until the specific hypothesis, which is the occasion of empiricism being set to work, is recognized as itself the creature of owing how to conduct a scientific inquiry.Or consider the example of cookery. It might be supposed that an ignorant man, some edible materials, and a cookery book compose together the necessities of a self-moved (or concrete) activity called cooking. But nothing is further from the truth. The cookery book is not an independently generated beginning from which cooking can spring; it is nothing more than an abstract of somebody's knowledge of how to cook: it is the stepchild, not the parent of the activity. The book, in its tum, may help to set a man on to dressing a dinner, but if it were his sole guide he could never, in fact, begin: the book speaks only to those who know already the kind of thing to expect from it and consequently bow to interpret it.Now, just as a cookery book presupposes somebody who knows how to cook, and its use presupposes somebody who already knows how to use it, and just as a scientific hypothesis springs from a knowledge of how to conduct a scientific investigation and separated from that knowledge is powerless to set empiricism profitably to work, so a political ideology must be understood, not as an independently premeditated beginning for political activity, but as knowledge (abstract and generalized) of a concrete manner of attending to the arrangements of a society. The catechism which sets out the purposes to be pursued merely abridges a concrete manner of behaviour in which those purposes are already hidden. It does not exist in advance of political activity, and by itself it is always an insufficient guide. Political enterprises, the ends to be pursued, the arrangements to be established (all the normal ingredients of a political ideology), cannot be premeditated in advance of a manner of attending to the arrangements of a society; what we do, and moreover what we want to do, is the creature of how we are accustomed to conduct our affairs. Indeed, it often reflects no more than a discovered ability to do something which is then translated into an authority to do it.