David Icke quote: “The only revolution that will change anything is a revolution of perception.”

“The Revolution was effected before the war commenced. The Revolution was in the minds and hearts of the people; a change in their religious sentiments of their duties and obligations. … This radical change in the principles, opinions, sentiments, and affections of the people, was the real American Revolution.”

John Adams (1735–1826) 2nd President of the United States

1810s, What do we mean by the American Revolution? (1818)
Context: The American Revolution was not a common event. Its effects and consequences have already been awful over a great part of the globe. And when and where are they to cease?
But what do we mean by the American Revolution? Do we mean the American war? The Revolution was effected before the war commenced. The Revolution was in the minds and hearts of the people; a change in their religious sentiments of their duties and obligations. … This radical change in the principles, opinions, sentiments, and affections of the people, was the real American Revolution.

“That becomes the revolution, to be idealistic enough that you think you can change the world, and what you find is you can't change anything but yourself.”

Marilyn Manson (1969) American rock musician and actor

“There is a revolution coming. It will not be like revolutions of the past. It will originate with the individual and with culture, and it will change the political structure only as its final act. It will not require violence to succeed, and it cannot be successfully resisted by violence.”

Charles A. Reich book The Greening of America

Source: The Greening of America (1970), Chapter I : The Coming American Revolution, p. 4
Context: There is a revolution coming. It will not be like revolutions of the past. It will originate with the individual and with culture, and it will change the political structure only as its final act. It will not require violence to succeed, and it cannot be successfully resisted by violence. It is now spreading with amazing rapidity, and already our laws, institutions and social structure are changing in consequence. It promises a higher reason, a more human community, and a new and liberated individual. Its ultimate creation will be a new and enduring wholeness and beauty — a renewed relationship of man to himself, to other men, to society, to nature, and to the land.
This is the revolution of the new generation.

“The Iranian revolution was a real revolution, not just a coup d'etat or a putsch or whatever. It was a genuine revolution in the sense that the French and the Russian revolutions were revolutions. It brought a massive change, social, economic, ideological not just a change of regime. Like for the French and Russian revolutions in their day, Khomeini had had a tremendous impact everywhere they had a shared universe of discourse, that is to say, the Muslim world. Just as the French and Russian revolutions in their day, and for some time after, had such an impact, so did the Iranian revolution, and it was not limited to the Shi'a world.”

Bernard Lewis (1916–2018) British-American historian

Books, Islam and the West: A Conversation with Bernard Lewis (2006)

“You cannot buy the Revolution. You cannot make the Revolution. You can only be the Revolution. It is in your spirit or, it is nowhere.”

Ursula K. Le Guin Hainish Cycle

Source: Hainish Cycle, (1974), Chapter 9 (p. 301)

“Revolution is the sense of the historical moment; it is changing everything that must be changed”

Fidel Castro (1926–2016) former First Secretary of the Communist Party and President of Cuba

As quoted in Speech by Dr. Fidel Castro Ruz, President of the Republic of Cuba, at the mass rally called by the Cuban youths, students and workers on the occasion of the International Labor Day at the Revolution Square http://www.fidelcastro.cu/en/discursos/speech-mass-rally-called-cuban-youths-students-and-workers-revolution-square-occasion (May 1, 2000)
Context: Revolution is the sense of the historical moment; it is changing everything that must be changed; it is full equality and freedom; it is being treated and treating others like human beings; it is emancipating ourselves, by ourselves and with our very own efforts; it is challenging the dominant powerful forces within and outside of the social and national arena; it is defending the values one believes in at the cost of any sacrifice; it is modesty, selflessness, altruism, solidarity and heroism; it is fighting with audacity, intelligence and realism; it is never telling a lie or violating ethical principles; it is the profound conviction that there is no force on earth that can crush truth and ideas. Revolution is unity, it is independence, it is fighting for our dreams of justice for Cuba and the world that is the basis of our patriotism, our socialism and our internationalism.