“The writer is the engineer of the human soul.”

Out of Control: The New Biology of Machines, Social Systems and the Economic World (1995)

Autobiography of A.T. Still, page 253.

Source: A Mathematical Theory of Systems Engineering (1967), p. 193.

The William Saroyan Reader (1958)
Context: The writer is a spiritual anarchist, as in the depth of his soul every man is. He is discontented with everything and everybody. The writer is everybody's best friend and only true enemy — the good and great enemy. He neither walks with the multitude nor cheers with them. The writer who is a writer is a rebel who never stops.

Foreword: 1978, p. xxix
The Cultural Contradictions of Capitalism (1976)

although many engines move without being touched by any one
VIII. On Mind and Soul, and that the latter is immortal.
On the Gods and the Cosmos

1960, Sport at the New Frontier: The Soft American
Context: It is ironic that at a time when the magnitude of our dangers makes the physical fitness of our citizens a matter of increasing importance, it takes greater effort and determination than ever before to build the strength of our bodies. The age of leisure and abundance can destroy vigor and muscle tone as effortlessly as it can gain time. Today human activity, the labor of the human body, is rapidly being engineered out of working life.

"New Maps of Hyperspace" (1989); originally published in Magical Blend magazine, also in The Archaic Revival: Speculations on Psychedelic Mushrooms, the Amazon, Virtual Reality, UFOs, Evolution, Shamanism, the Rebirth of the Goddess, and the End of History (1992) http://www.erowid.org/culture/characters/mckenna_terence/mckenna_terence_maps_hyperspace.shtml
Context: There is a spiritual obligation, there is a task to be done. It is not, however, something as simple as following a set of somebody else's rules. The noetic enterprise is a primary obligation toward being. Our salvation is linked to it. Not everyone has to read alchemical texts or study superconducting biomolecules to make the transition. Most people make it naively by thinking clearly about the present at hand, but we intellectuals are trapped in a world of too much information. Innocence is gone for us. We cannot expect to cross the rainbow bridge through a good act of contrition; that will not be sufficient.
We have to understand. Whitehead said, "Understanding is the apperception of pattern as such"; to fear death is to misunderstand life. Cognitive activity is the defining act of humanness. Language, thought, analysis, art, dance, poetry, mythmaking: these are the things that point the way toward the realm of the eschaton. We humans may be released into a realm of pure self-engineering. The imagination is everything. This was Blake's perception. This is where we came from. This is where we are going. And it is only to be approached through cognitive activity.