All men recognize the right of revolution, that is, the right to refuse allegiance to, and to resist, the government, when its tyranny or its inefficiency are great and unendurable.

If there was ever a just war since the world began, it is this in which America is now engaged.

All civilization has from time to time become a thin crust over a volcano of revolution.

If not us, who? If not now, when?

In revolutions men fall and rise. Long before this war is over, much as you hear me praised now, you may hear me cursed and insulted.

Revolution can never be forecast; it cannot be foretold; it comes of itself. Revolution is brewing and is bound to flare up.

The children of the revolution are always ungrateful, and the revolution must be grateful that it is so.

Insurrection of thought always precedes insurrection of arms.

Insurgents are like conquerors: they must go forward; the moment they are stopped, they are lost.

Revolutions are not made by men in spectacles.

The successful revolutionary is a statesman, the unsuccessful one a criminal.

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

There is a kind of revolution of so general a character that it changes the mental tastes as well as the fortunes of the world.