"My lady, I greatly admire what I have heard you say, that so much good has come into the world by virtue of the understanding of women. These usually say that women's knowledge is worthless. In fact when someone says something foolish, the widely voiced insult is that this is women's knowledge. In brief, the typical opinions and comments of men claim that women have been and are useful in the world only for bearing children and sewing."
She answered, "Now you can recognise the massive ingratitude of the men who say such things; they are like people who live off the goods of others without knowing their source and without thanking anyone. You can also clearly see how God, who does nothing without a reason, wished to show men that He does not despise the feminine sex nor their own, because it so pleased Him to place such great understanding in women's brains that they are intelligent enough not only to learn and retain the sciences but also to discover new sciences themselves, indeed sciences of such great utility and profit for the world that nothing has been more necessary.
Christine de Pizan, The Book of the City of Ladies, 1405