The quote discusses how, after the 17th century, openly talking about sex became more challenging and carried social consequences. Foucault suggests that in order to truly understand and control sexuality, society first had to restrict its expression through language. By limiting how sex could be discussed, it was as if people were attempting to dominate the very nature of sexuality itself. This reflects a broader theme in human existence: when we suppress open dialogue about important aspects of life, we create a disconnect from our true selves. The struggle to talk freely about sex highlights the ongoing tension between personal freedom and societal norms. Ultimately, the takeaway is the need for honest conversations about sexuality to foster genuine understanding and growth in our lives.