Final answer:
William Wordsworth's best work emerged following his travels in Europe and his subsequent settlement in the Lake District, deeply influenced by his personal experiences and surroundings.
Step-by-step explanation:
It is said that William Wordsworth's best work was created after his travels in Europe. These travels included a significant journey to France during the revolutionary period, which became a profound source of inspiration for his poetry. Upon returning to England and settling in the Lake District with his sister Dorothy, Wordsworth wrote many of his cherished poems, deeply influenced by both the beauty of nature around him and the emotional experiences from his life, including his revolutionary sympathies, his unresolved relationship with Annette Vallon, and eventually his marriage to Mary Hutchinson.