“Life today is an autopoietic, photosynthetic phenomenon, planetary in scale. A chemical transmutation of sunlight, it exuberantly tries to spread, to outgrow itself. Yet by reproducing, it maintains itself and its past even as it grows. Life transforms to meet the contingencies of its changing environment and in doing so changes that environment. By degrees the environment becomes absorbed into the processes of life, becomes less a static, inanimate backdrop and more and more like a house, nest, or shell—that is, an involved, constructed part of an organic being.”

Journal entry (11 December 1941); later published in The Wartime Journals (1970)
Context: We talk about spreading democracy and freedom all over the world, but they are to us words rather than conditions. We haven't even got them here in America, and the farther we get into this war the farther we get away from democracy and freedom. Where is it leading us to, and when will it end? The war might stop this winter, but that is improbable. It may go on for fifty years or more. That also is improbable. The elements are too conflicting and confused to form any accurate judgment of its length. There may be a series of wars, one after another, going on indefinitely.
Possibly the world will come to its senses sooner than I expect. But, as I have often said, the environment of human life has changed more rapidly and more extensively in recent years than it has ever changed before. When environment changes, there must be a corresponding change in life. That change must be so great that it is not likely to be completed in a decade or in a generation.

The Story of Australia's People: The Rise and Fall of Ancient Australia (2015)

22 September 1907
India's Rebirth
Context: It is the nature of human institutions to degenerate, to lose their vitality, and decay, and the first sign of decay is the loss of flexibility and oblivion of the essential spirit in which they were conceived. The spirit is permanent, the body changes; and a body which refuses to change must die. The spirit expresses itself in many ways while itself remaining essentially the same but the body must change to suit its changing environments if it wishes to live. There is no doubt that the institution of caste degenerated. It ceased to be determined by spiritual qualifications which, once essential, have now come to be subordinate and even immaterial and is determined by the purely material tests of occupation and birth. By this change it has set itself against the fundamental tendency of Hinduism which is to insist on the spiritual and subordinate the material and thus lost most of its meaning. The spirit of caste arrogance, exclusiveness and superiority came to dominate it instead of the spirit of duty, and the change weakened the nation and helped to reduce us to our present conditions.

Program Development by Stepwise Refinement (1971)

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995)

Source: Evolution (2002), Chapter 5 “The Time of Long Shadows” section II (pp. 120-121)

1960s, The Role of the Behavioral Scientist in the Civil Rights Movement (1967)

"The Man Who Named the World" (1990)

Source: Red Mars (1992), Chapter 4, “Homesick” (p. 205)