I'm struck by the difficulty I had in formulating it.....

“ I'm struck by the difficulty I had in formulating it. When I think back now, I ask myself what else it was that I was talking about in Madness and Civilization or The Birth of the Clinic, but power? Yet I'm perfectly aware that I scarcely ever used the word and never had such a field of analyses at my disposal. I can say that this was an incapacity linked undoubtedly with the political situation in which we found ourselves. It is hard to see where, either on the Right or the Left, this problem of power could then have been posed. On the Right, it was posed only in terms of constitution, sovereignty, and so on, that is, in juridical terms; on the Marxist side, it was posed only in terms of the state apparatus. The way power was exercised - concretely, and in detail - with its specificity, its techniques and tactics, was something no one attempted to ascertain; they contented themselves with denouncing it in a polemical and global fashion as it existed among the "other," in the adversary camp. Where Soviet socialist power was in question, its opponents called it totalitarianism; power in Western capitalism was denounced by the Marxists as class domination; but the mechanics of power in themselves were never analyzed. ”

Michel Foucault

From : Power/Knowledge: Selected Interviews and Other Writings