# Darwin, *On the Origin of Species*, 1859 > [!cite] > Darwin, Charles. *On the Origin of Species By Means of Natural Selection*. John Murray, 1859; Project Gutenberg, 2024. EPUB. [www.gutenberg.org/ebooks/1228](https://doi.org/www.gutenberg.org/ebooks/1228). --- ‘I should premise that I use the term Struggle for Existence in a large and metaphorical sense, including dependence of one being on another, and including (which is more important) not only the life of the individual, but success in leaving progeny.’ [[Darwin, On the Origin of Species, 1859|(Darwin 1859, chap. 3)]]