http://ebooks.adelaide.edu.au/s/schopenhauer/arthur/essays/chapter5.html

In our part of the world, where monogamy is in force, to marry means to halve one’s rights and to double one’s duties. When the laws granted woman the same rights as man, they should also have given her a masculine power of reason. On the contrary, just as the privileges and honours which the laws decree to women surpass what Nature has meted out to them, so is there a proportional decrease in the number of women who really share these privileges; therefore the remainder are deprived of their natural rights in so far as the others have been given more than Nature accords.