Authors:

The individual does actually carry on a double existence: one designed to serve his own purposes and another as a link in a chain, in which he serves against, or at any rate without, any volition of his own.

Sigmund Freud (2008). “General Psychological Theory: Papers on Metapsychology”, p.46, Simon and Schuster
The individual does actually carry on a double existence: one designed to serve his own purposes and another as a link in a chain, in which he serves against, or at any rate without, any volition of his own.