It must be said at the outset that the field of mental illness has always been debatable ground. Who is sane, who isn't, and who is qualified to judge? Standards have fluctuated wildly, and abuses have been numerous. In the last century, in the United States, a wife could be committed to an asylum on the say-so of her husband and two easily-paid-off doctors alone, and there are cases on record of wives who were "put away" for holding theological opinions that differed from those of the husband, or for refusing to have as much sex as he would like.

Ophelia Has a Lot to Answer For (1997)