The Unabomber, Theodore Kaczynski shares a unique overlap in philosophy with beloved American author Henry David Thoreau. This paper analyzes Kaczynski’s manifesto and message in comparison with ideas found in Thoreau’s Walden. Both writers present the rise of industrialization in their contemporary periods as an urgent problem, and write the return to a more primitive life within nature as a solution for the existential anxieties brought upon by modernity. Also discussed are the ethics of their revolutionary actions, and environmental revolution as a whole.