Charles Darwin (1809-1882)

It may be said that natural selection is daily and hourly scrutinizing, throughout the world, every variation, even the slightest; rejecting that which is bad, preserving and adding up all that is good; silently and insensibly working, whenever and wherever opportunity offers, at the improvement of each organic being in relation to its organic and inorganic condition of life.

Origin of Species (1859)

Charles Darwin Texts Online
Extract from Darwin's 'Essay' (1844)
Voyage of the Beagle
Letter to Professor Asa Gray (1857)
Darwin-Wallace Evolution Paper (1858)
Origin of Species(1859)
The Descent of Man(1871)
Expression of the Emotions in Man and Animals (1872)
Extract from The Autobiography of Charles Darwin
Obituary Notices of the Proceedings of the Royal Society(1888)

Baron Cuvier, Discourse on the Revolutionary Upheavals on the Surface of the Globe (1825)
Andrew Dickson White, History of the Warfare of Science with Theology in Christendom (1896)
The Huxley File (Clark University)
David N. Livingstone,"Science & Religion: Towards a New Cartography," Christian Scholars Review (1997)
Edward J. Larson, Summer for the Gods [Chapter 1] (C-Span)
Famous Trials in American History: Tennessee vs. John Scopes (UMKC)

Charles P. Henderson, Jr., God and Science (1986) [Chapter 3: Charles Darwin]
Enter Evolution: Theory & History (Berkeley)
Evolution Website (BBC Online)
Collection of Darwiniana(University of South Carolina)
Talk Origins Archive: Exploring the Creation/Evolution Controversy
Evolution: Selected Papers & Commentary (Queens University)