Change

The great mass of people are incapable of realizing that in economic life nothing is permanent except change. They regard the existing state of affairs as eternal; as it has been so shall it always be.

Socialism, p. 188

In life everything is continually in flux.

Epistemological Problems of Economics, p. 108

There is never a standstill in the economy, but perpetual changes, movement, innovation, the continual emergence of the unprecedented.

Liberalism, p. 80