All of Wollstonecraft's writings, including the "Letters Written in Sweden, Norway, and Denmark", address the concerns of women in eighteenth-century society. As in previous works, she discusses concrete issues such as childcare and relationships with servants, but unlike her more polemical books such as "Thoughts on the Education of Daughters" (1787) or the "Rights of Woman", this text emphasizes her emotional reactions to nature and maternity. Yet she does not depart from her interest in promoting women's education and rights. In Letter 19, the most explicitly feminist letter, Wollstonecraft anticipates readers' criticisms: "still harping on the same subject, you will exclaim – How can I avoid it, when most of the struggles of an eventful life have been occasioned by the oppressed state of my sex: we reason deeply, when we forcibly feel." Wollstonecraft comes to the realization that she has always been forced to experience the world as a woman—it is the defining feature of her sense of self.