Theodore Parker (American, 1810–1860) was an American theologian, abolitionist, and reformer; influential in the Transcendentalist movement and Unitarian thought. For those in the trenches - of protest, policy, or private reckoning. A call to keep going, even when justice drags its feet. From a sermon delivered in 1853; popularized in the 20th century by Martin Luther King Jr. and later quoted by Barack Obama.

This quote dates from 1853.