“The concept of the « struggle for existence » has been applied to microbial interrelationships in nature in a manner comparable to the effects assigned by Darwin to higher forms of life. It has also been suggested that the ability of a microbe to produce an antibiotic substance enables it to survive Giom. in competition for space and for nutrients with other microbes. Such assumptions ppear to be totally unjustified on the basis of existing knowledge. Before we proceed with a discussion of the formation and activities of antibiotics under natural conditions, we must consider certain fundamental aspects of the problem of antibiotic production under controlled laboratory or factory conditions… All the discussion of a "struggle for existence" in which antibiotics are supposed to play a part, is merely a figment of the imagination, and an appeal to the melodramatic rather than the factual.”

Source: The Theory of Evolution (1958), p. xv.

World Wildlife Fund Dinner, York, (1969)
The Environmental Revolution: Speeches on Conservation, 1962–77 (1978)
Context: Why then be concerned about the conservation of wildlife when for all practical purposes we would be much better off if humans and their domestic animals and pets were the only living creatures on the face of the earth? There is no obvious and demolishing answer to this rather doubtful logic although in practice the destruction of all wild animals would certainly bring devastating changes to our existence on this planet as we know it today... The trouble is that everything in nature is completely interdependent. Tinker with one part of it and the repercussions ripple out in all directions... Wildlife — and that includes everything from microbes to blue whales and from a fungus to a redwood tree — has been so much part of life on the earth that we are inclined to take its continued existence for granted... Yet the wildlife of the world is disappearing, not because of a malicious and deliberate policy of slaughter and extermination, but simply because of a general and widespread ignorance and neglect.

Source: The Postmodern Condition: A Report on Knowledge (1977), p.7

The Ethics of Belief (1877), The Weight Of Authority
Context: What shall we say of that authority, more venerable and august than any individual witness, the time-honoured tradition of the human race? An atmosphere of beliefs and conceptions has been formed by the labours and struggles of our forefathers, which enables us to breathe amid the various and complex circumstances of our life. It is around and about us and within us; we cannot think except in the forms and processes of thought which it supplies. Is it possible to doubt and to test it? and if possible, is it right?
We shall find reason to answer that it is not only possible and right, but our bounden duty; that the main purpose of the tradition itself is to supply us with the means of asking questions, of testing and inquiring into things; that if we misuse it, and take it as a collection of cut-and-dried statements to be accepted without further inquiry, we are not only injuring ourselves here, but, by refusing to do our part towards the building up of the fabric which shall be inherited by our children, we are tending to cut off ourselves and our race from the human line.

Source: The Political Thought of Abdullah Ocalan (2017), Liberating Life: Women's Revolution, p.69

Source: Fallen Leaves (2014), Ch. 2 : On Youth

Physics and Philosophy (1958), p. 201

Geometry as a Branch of Physics (1949)

Attributed to Kenneth Boulding (1976) in John T. Partington, Terry Orlick, John H. Salmela (1982) Sport in perspective. p. 94
1970s