Darwin's first published expression of the concept of natural selection.
"On the Tendency of Species to form Varieties; and on the Perpetuation of Varieties and Species by Natural Means of Selection" Journal of the Proceedings of the Linnean Society of London: Zoology (read 1 July 1853; published 20 August 1858) volume 3, pages 45-62, at page 51 http://darwin-online.org.uk/content/frameset?pageseq=7&itemID=F350&viewtype=image
Other letters, notebooks, journal articles, recollected statements
“Man selects only for his own good: Nature only for that of the being which she tends.”
Source: The Origin of Species
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Charles Darwin 161
British naturalist, author of "On the origin of species, by… 1809–1882Related quotes
Playfully ironic letter to Adam Smith regarding the positive reception of "The Theory of Moral Sentiments"
Context: A wise man's kingdom is his own breast: or, if he ever looks farther, it will only be to the judgment of a select few, who are free from prejudices, and capable of examining his work. Nothing indeed can be a stronger presumption of falsehood than the approbation of the multitude; and Phocion, you know, always suspected himself of some blunder when he was attended with the applauses of the populace.
Second Thesis
Idea for a Universal History from a Cosmopolitan Point of View (1784)
Source: Man for Himself (1947), Ch. 3 "Human Nature and Character
(original Dutch, citaat van B.C. Koekkoek:) Gelukkig echter de [schilder]school, waar moeder Natuur op den voorgrond staat, en zij alleen geraadpleegd wordt om 'waarheid' op het doek of paneel voor te stellen. – Hij kent de geheimen van de veelvuldige schakeringen der natuur, zijne schilderij is ene getrouwe kopij der natuur, ziedaar den hoogsten lof, die een schilder kan toegezwaaid worden..
Source: Herinneringen aan en Mededeelingen van…' (1841), p. 27-28
“A good writer possesses not only his own spirit but also the spirit of his friends.”