Revolution, n. In politics, an abrupt change in the form of misgovernment. 
~Ambrose Bierce

A revolution is a struggle to the death between the future and the past.
~Fidel Castro

The seed of revolution is repression. 
~Woodrow Wilson

When dictatorship is a fact, revolution becomes a right. 
~Victor Hugo

Those who make peaceful revolution impossible will make violent revolution inevitable. 
~John F. Kennedy