Thought is no longer theoretical. As soon as it functions it offends or reconciles, attracts or repels, breaks, dissociates, unites or reunites; it cannot help but liberate or enslave. Even before prescribing, suggesting a future, saying what must be done, even before exhorting or merely sounding an alarm, thought, at the level of its existence, in its very dawning, is in itself an action-a perilous act.

Power is tolerable only on condition that it mask a substantial part of itself. Its success is proportional to its ability to hide its own mechanisms.

Once leprosy had gone, and the figure of the leper was no more than a distant memory, these structures still remained. The game of exclusion would be played again, often in these same places, in an oddly similar fashion two or three centuries later. The role of the leper was to be played by the poor and by the vagrant, by prisoners and by the 'alienated', and the sort of salvation at stake for both parties in this game of exclusion is the matter of this study.

The university and in a general way, all teaching systems, which appear simply to disseminate knowledge, are made to maintain a certain social class in power; and to exclude the instruments of power of another social class.

Sexual behavior is not, as is too often assumed, a superimposition of, on the one hand, desires which derive from natural instincts, and, on the other hand, of permissive or restrictive laws which tell us what we should or shouldn't do. Sexual behavior is more than that.

To seek in the great accumulation of the already-said the text that resembles "in advance" a later text, to ransack history in order to rediscover the play of anticipations or echoes, to go right back to the first seeds or to go forward to the last traces, to reveal in a work its fidelity to tradition or its irreducible uniqueness, to raise or lower its stock of originality, to say that the Port -Royal grammarians invented nothing, or to discover that Cuvier had more predecessors than one thought, these are harmless enough amusements for historians who refuse to grow up.

Psychoanalysis can unravel some of the forms of madness; it remains a stranger to the sovereign enterprise of unreason. It can neither limit nor transcribe, nor most certainly explain, what is essential in this enterprise.