...Darwin recalled in his autobiography, the pivotal insight came: In October [actually September 28], 1838, that is, fifteen months after I had begun my...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...Malthus' ( 1798) famous book: In October (actually September 28 ) 1 838, that is, fifteen months after 1 had begun my systematic inquiry, I happened to read...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...words, In October 1838, that is, fifteen months after 1 had begun my systematic enquiry [on evolution], I happened to read for amusement Malthus on Population,...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...population growth (Essay on Population) led to his famous epiphany on September 28, 1838. Darwin wrote he "read for amusement Malthus on Population, and being...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me," he continues, "that under these...

...months after I had begun my systematic inquiry, I happened to read, Malthus' Essay on the Principle of Population, and being well prepared to appreciate...struggle for existence which everywhere goes on from long continued observation of the habits of animals and plants, it at once struck me that under these...

...systematic enquiry, I happened to read for amusement Malthus on population, and being well-prepared to appreciate the struggle for existence which everywhere goes on, from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...Überlebenskampf stark von den Thesen Malthus' beeinflussen lassen.39 In seiner Autobiographie schreibt er: In October 1838, that is, fifteen months after I had...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...autobiography, Darwin acknowledged the magnitude of his debt to Malthus: In October 1838 [he tells us] ... I happened to read for amusement Malthus on Population,...existence which everywhere goes on from long-continued observation of the habits of animals and plants, it at once struck me that under these circumstances...

...authority of science to Malthus's pronouncements. In his autobiography, Darwin wrote: I happened [in 1838] to read for amusement Malthus on population, and being...struggle for existence which everywhere goes on from long continuous observation of the habits of animals and plants, it at once struck me that under these...

...Limits of Nature' in The Limits of Human Nature, ed. J. Benthall, London 1973. Being well-prepared to appreciate the struggle for existence which everywhere goes on from long-continued observation of plants and animals, it at once struck me that under these circumstances favourable variations...