“The open revolution changes also the spirit of man, the relationship between man and man, because it changes the method of struggle. Therefore it brings a total transformation of power economy and nature.”

Fab. LV: Of an Ægyptian King and his Apes
The Fables of Aesop (2nd ed. 1668)

Andrew Grove, in: " What I've Learned: Andy Grove http://www.esquire.com/entertainment/interviews/a1449/learned-andy-grove-0500/", Esquire magazine, May 1, 2000
New millennium

Part II, Chapter 6, Unemployment and Inflation, p. 130
The Death of Economics (1994)

The Philosophy of Space and Time (1928, tr. 1957)

What Is Anarchism? (1929), Ch. 26: "Preparation" http://libcom.org/library/what-is-anarchism-alexander-berkman-26
Context: If your object is to secure liberty, you must learn to do without authority and compulsion. If you intend to live in peace and harmony with your fellow-men, you and they should cultivate brotherhood and respect for each other. If you want to work together with them for your mutual benefit, you must practice cooperation. The social revolution means much more than the reorganization of conditions only: it means the establishment of new human values and social relationships, a changed attitude of man to man, as of one free and independent to his equal; it means a different spirit in individual and collective life, and that spirit cannot be born overnight. It is a spirit to be cultivated, to be nurtured and reared, as the most delicate flower it is, for indeed it is the flower of a new and beautiful existence.

On Growing Up Tough (1970), "The Purple Lodge & The Hippies"
1970s-
Context: We, perhaps, have corrupted our children and our grandchildren by heedless affluence, by a lack of manliness, by giving the younger generation more money and liberty than their youth can handle, by indoctrinating them with sinister ideologies and false values, by permitting them, as young children, to indulge themselves in imprudence to superiors and defiance of duly constituted authority, by lack of prudent, swift punishment when the transgressed, by coddling and pampering them when they were children and protecting them from a very dangerous world — which always was and always will be. We gave them no moral arms, no spiritual armor.
In reality.... the nature of human beings never changes; it is immutable. The present generation of children and the present generation of young adults from the age of thirteen to eighteen is, therefore, no different from that of their great-great-grandparents.
Political fads come and go; theories rise and fall; the scientific ‘truth’ of today becomes the discarded error of tomorrow.
Man’s ideas change, but not his inherent nature. That remains. So, if the children are monstrous today – even criminal – it is not because their natures have become polluted, but because they have not been taught better, nor disciplined.

Interview with Bruce Barton, "It Would Be Fun To Start Over Again," The American Magazine, April 1921

"Anonymity: An Enquiry"
Source: Two Cheers for Democracy (1951)