The language of science is in a state of permanent semantic revolution.

A doctrine of permanent revolution, however, brings to mind no analogies in history to comfort us.

The biggest difference is in Trotsky's idea that there needs to be an international "permanent revolution".

They were told there was no hope for a better life other than permanent revolution against the Jews.

"The most dangerous thing is creating a system of permanent revolutions," he said.

"But this is a permanent revolution that we're going to be going through for the next 10 to 25 years or so."

A culture war is what Mao called "a permanent revolution."

There he worked on fleshing out his theory of permanent revolution.

Bill Dunn et al., 100 years of permanent revolution.

She would never have used the "R" word herself, but she had embarked on permanent revolution.