Anatol Rapoport (1954, p. 75); as quoted in: Samuel Leinhardt (1977) Social Networks: A Developing Paradigm, p. 350
1950s
“It is increasingly necessary to impress the fact that there are two distinct lines in the improvement of any race: the environment which brings individuals up to their best possibilities; the other, ten thousand times more important and effective, selection of the best individuals through a series of generations.”
Jordan's Commentary: These two lines correspond respectively to Galton's two elements in individual development, "Nurture" and "Nature."
How Plants are Trained to Work for Man (1921) Vol. 1 Plant Breeding
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Luther Burbank 30
American botanist, horticulturist and pioneer in agricultur… 1849–1926Related quotes
All for Australia (1984)

The Birth of New India: A Collection of Writings and Speeches on Indian Affairs http://books.google.co.in/books?id=n7ZMF8Mjh2oC, p. 85

Quoting Abraham Lincoln
The Future of Civilization (1938)
Context: In some states of society it may even be that a form of dictatorship is necessary. No doubt in the hands of an able man it may possibly be more efficient than a democratic form of administration. But in the end, I am confident that a free government is best for free people. The old phrase, "Government of the people, by the people, for the people"*, represents a true ideal. It is best for the people as a whole. It is even more clearly the best for the development of the individual man and woman. And since in the end, the character and the prosperity of the nation depend on the character of the individuals that compose it, the form of government which best promotes individual development is the best for the people as a whole.

This passage suggests that more than than 50 years before the publication of On the Origin of Species, Hutton anticipated Darwin's theory of natural selection.
Source: An Investigation into the Principles of Knowledge (1794)

Quotes related to the Congo Free State
Source: King Leopold's Ghost https://vimeo.com/ondemand/kingleopoldsghost Newspaper interview, 1906.

The Open Mind interview (1985)
Context: What is … important is that we — number one: Learn to live with each other. Number two: try to bring out the best in each other. The best from the best, and the best from those who, perhaps, might not have the same endowment. And so this bespeaks an entirely different philosophy — a different way of life — a different kind of relationship — where the object is not to put down the other, but to raise up the other.

Popular Government: Its Essence, Its Permanence and Its Perils, chapter 4, p.90 (1913).

“Campaign Address in Scranton, Penn.,” (September 23, 1912) http://teachingamericanhistory.org/library/document/campaign-address-in-scranton-penn/
1910s

"Green Is the New Red" https://www.theepochtimes.com/green-is-the-new-red_2778949.html