David S. Reynolds, John Brown, Abolitionist: The Man Who Killed Slavery, Sparked the Civil War, and Seeded Civil Rights, rev. ed. (New York: Vintage Books, 2005), 290.
"As during his visit in 1857, Brown gave a public lecture in the Concord Town Hall. Emerson, Thoreau, and Alcott were among those in attendance. Brown talked about Kansas and dropped hints about Virginia. Without revealing plans, he said he was prepared to strike a dramatic blow for freedom by running off slaves in an effort to render insecure the institution of slavery. The Transcendentalists' enthusiasm for Brown was stronger than ever. They thought he looked like an apostle, with his flowing white beard, his intense grayish eyes, and his aquiline nose, slightly hooked above his firm lips…For Alcott, as for Emerson and Thoreau, Brown embodied the higher law, principled violence, and self-reliance."