Herbert Spencer: The most basic universal social phenomena affecting society’s evolution, and the external environment constraints opportunities.
The Principles of Sociology, Volume 1, Part 1 [The Data of Sociology], Chapters 2-4..
The Source for today’s exhibit is:
Herbert Spencer, The Principles of Sociology, Volume 1 (1874–75; enlarged 1876, 1885), Part 1, The Data of Sociology, London [multiple publishers]