Sometimes it can be hard to walk away from a career that you truly love, but eventually, everyone needs to decide when the time is right to retire. For First Lady Jill Biden, that time is now.

Biden has been a teacher for 40 years, but she is officially putting her teaching career behind her. She made this announcement this past week after teaching her very last class which was at Northern Virginia Community College.

Yahoo! reports that she made the announcement during a virtual event where teachers from around the country watched. She explained, “Being your first lady has been the honor of my life.

But being your colleague has been the work of my life.” She continued, “Last Thursday, I taught my last class of the semester and my final class ever at Northern Virginia Community College.”