Métilde. At the start of the narrative, the author expresses a longing to write about his past experiences with a mix of introspection and melancholy. He questions whether he has made the most of his opportunities while considering the effects of vanity and personal ambition on his life. Stendhal recounts his departure from Milan and the emotional turmoil it caused, reflecting on the nature of his relationships and the characters he encountered in Paris, such as his companions Lussinge, Barot, and Poitevin. Through engaging anecdotes and observations, the opening sets the stage for a deeper exploration of the intricate social fabric and emotional landscapes that shaped Stendhal's life during a transformative period. (This is an automatically generated summary.)