In two pages or so discuss how each author discusses or manifests in their work the need for progress or reforms in 19th century ideas and society.

In Chapter 19 of the Readings to Accompany Experience Humanities book read the selections by Karl Marx, Charles Darwin, Sojourner Truth and Henry David Thoreau (pp. 213-219 and 243-248). In two pages or so discuss how each author discusses or manifests in their work the need for progress or reforms in 19th century ideas and society. As always, be specific in your treatment, making use of quotations and details to support your general statements.