How we cite our quotes: (Book.Chapter.Paragraph)
Quote #1
For example, just as is said, the great philosopher Aristotle had a very ugly body, with one eye lower than the other and with a strange face. (1.14.1)
Aristotle wasn't really much to look at. But nobody remembers this detail because it's his brilliant ideas that still live on today. The same should be the case for women, who shouldn't be judged on their beauty but on their ideas and actions.
Quote #2
The same might be said of Alexander, who was quite ugly, little, and had a sickly build. (1.14.1)
Lots and lots of people admire Alexander the Great. But the truth is that the dude had a misshapen body and face and was actually pretty tough to look at. The point here is that his body and face didn't matter, because his personality allowed him to do great things.
Quote #3
And to make certain that her entire outward appearance corresponded and joined with her inner character, she refused to allow any lecherous man or men of vile morals to frequent her court and insisted that all who wished to have her favor were virtuous and well-bred. (1.20.1)
Women in this book are often concerned with appearances, but not just stuff like makeup. For de Pizan, proper women need to be aware of the fact that people are always watching and judging their behavior. So these women must never allow themselves to be alone with men of bad reputation. It's not because anything will happen between them, but because people will start rumors saying that something did happen.