4-pages-in-American-literature-statement-of-thesis-position-about-Henry-Wadsworth-Longfellow

I have a statement of thesis/position about Henry Wadsworth Longfellow. ( “The Longfellow sees life as full of possibilities and his optimistic outlook on life inspires readers to see life positively and work harder to achieve higher goals”).

I need 3 to 4 pages supporting the thesis statement. Prove it through his life and writing.

Please keep the level of writing as a college student (easy vocabulary)

I attached the book images and one paragraph which has the thesis statement. (there are two more images could not attach due to size limit)