“Psychic disturbances are the consequences of the sexual chaos of society. For thousands of years, this chaos has had the function of psychically subjecting man to the prevailing conditions of existence, of internalizing the external mechanization of life. It has served to bring about the psychic anchoring of a mechanized and authoritarian civilization by making man incapable of functioning independently.”

1960s, Understanding Media (1964)

Another Roadside Attraction (1971)
Context: When a man confines an animal in a cage, he assumes ownership of that animal. But an animal is an individual; it cannot be owned. When a man tries to own an individual, whether that individual be another man, an animal or even a tree, he suffers the psychic consequences of an unnatural act.

Source: Cognitive Psychology, 1967, p. 88-89

Source: 1970s and later, Explorations in the functions of language, 1973, p. 35 cited in: Terence Odlin (1994) Perspectives on Pedagogical Grammar. p. 193.

Source: The Anatomy of Human Destructiveness (1973), p. 483
Context: Exploitation and manipulation produce boredom and triviality; they cripple man, and all factors that make man into a psychic cripple turn him also into a sadist or a destroyer. This position will be characterized by some as "overoptimistic," "utopian," or "unrealistic." In order to appreciate the merits of such criticism a discussion of the ambiguity of hope and the nature of optimism and pessimism seems called for.

"Second Discussion in San Diego (18 February 1974) http://www.jkrishnamurti.com/krishnamurti-teachings/view-text.php?tid=1102&chid=806&w=, p. 27; J.Krishnamurti Online, JKO Serial No. SD74CA2
1970s, A Wholly Different Way of Living (1970)
Context: Knowledge is necessary to act in the sense of my going home from here to the place I live; I must have knowledge for this; I must have knowledge to speak English; I must have knowledge to write a letter and so on. Knowledge as function, mechanical function, is necessary. Now if I use that knowledge in my relationship with you, another human being, I am bringing about a barrier, a division between you and me, namely the observer. That is, knowledge, in relationship, in human relationship, is destructive. That is knowledge which is the tradition, the memory, the image, which the mind has built about you, that knowledge is separative and therefore creates conflict in our relationship.

Source: Rudolf Steiner: The Man and His Vision (1985), p. 164

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No one can, in case of affairs, abandon the conviction that the future is co-determined by his transactions.
Antimonies
Gesammelte Mathematische Werke (1876)