Idealism and Metaphysics are Easy

Idealism and metaphysics are the easiest things in the world, because people can talk as much nonsense as they like without basing it on objective reality or having it tested against reality. Materialism and dialectics, on the other hand, need effort. They must be based on and tested by objective reality. Unless one makes the effort one is liable to slip into idealism and metaphysics. Introductory note to "Material on the Hu Feng Counter-Revolutionary Clique" (May 1955).