The first duty of a revolutionary is to get away with it.

Abbie Hoffman (1936 - 1989)
Poverty is the parent of revolution and crime.

Aristotle (384 BC - 322 BC)
Revolution is not a onetime event.

Audre Lorde

The most radical revolutionary will become a conservative the day after the revolution.

Hannah Arendt (1906 - 1975)
Those who make peaceful revolution impossible will make violent revolution inevitable.

John F. Kennedy (1917 - 1963), In a speech at the White House, 1962
The most important scientific revolutions all include, as their only common feature, the dethronement of human arrogance from one pedestal after another of previous convictions about our centrality in the cosmos.

Stephen Jay Gould (1941 - 2002)