“Psychotherapy may begin with the primitive, but it must end with the divine, for both are integral factors in the human mind.”

Notebooks (1830).
1830s

Quoted in François-Bernard Mâche (1983, 1992). Music, Myth and Nature, or The Dolphins of Arion (Musique, mythe, nature, ou les Dauphins d'Arion, trans. Susan Delaney). Harwood Academic Publishers. ISBN 3718653214.

Section 1
The Einstein Intersection (1967)

Book III, Chapter 3, p. 374
The Origin of Consciousness in the Breakdown of the Bicameral Mind (1976)

The Serpent, in Pt. I, Act I
1920s, Back to Methuselah (1921)

"The Engineered Century" http://www.nae.edu/Publications/Bridge/TheVertiginousMarchofTechnology/TheEngineeredCentury.aspx remarks delivered during National Engineers Week on behalf of the National Academy of Engineering at the National Press Club (22 February 2000)
Context: A century hence, 2000 may be viewed as quite a primitive period in human history. It’s something to hope for. … I am, and ever will be, a white-socks, pocket-protector, nerdy engineer — born under the second law of thermodynamics, steeped in the steam tables, in love with free-body diagrams, transformed by Laplace, and propelled by compressible flow. As an engineer, I take a substantial amount of pride in the accomplishments of my profession.

Hagakure (c. 1716)

Introductory
The Grammar of Science (1900)