Darwin’s guess, as far as it went, is today pretty well confirmed. The building blocks of life were abundant on the early Earth, although we certainly cannot yet say we fully understand the origin of life.

But we humans, starting with Darwin, have only just begun to look into the matter.

Carl Sagan & Ann Druyan, Shadows of Forgotten Ancestors (via whats-out-there)

The Voyage of the Beagle has watershed status because it was during the course of the expedition it recounts that Darwin began to amass the great body of evidence – not intuition, but data – that makes the case for evolution by natural selection.

Carl Sagan & Ann Druyan, Shadows of Forgotten Ancestors (via whats-out-there)