“The big toe is the most human part of the human body, in the sense that no other element of this body is as differentiated from the corresponding element of the anthropoid ape (chimpanzee, gorilla, orangutan or gibbon).”

The Third Chimpanzee (1991)
The Third Chimpanzee: The Evolution and Future of the Human Animal (1991)

Source: The Moral Judgment of the Child (1932), Ch. 2 : Adult Constraint and Moral Realism <!-- p. 183 -->
Context: As Bovet has demonstrated in the field of morals, rules do not appear in the mind of the child as innate facts, but as facts that are transmitted to him by his seniors, and to which from his tenderest years he has to conform by means of a sui generis form of adaptation. This, of course, does not prevent some rules from containing more than others an element of rationality, thus corresponding to the deepest fundamental constants of human nature. But whether they be rational or simply a matter of usage and consensus of opinion, rules imposed on the childish mind by adult constraint do begin by presenting a more or less uniform character of exteriority and sheer authority. So that instead of passing smoothly from an early individualism (the "social" element of the first months is only biologically social, so to speak, inside the individual, and therefore individualistic) to a state of progressive cooperation, the child is from his first year onwards in the grip of coercive education which goes straight on and ends by producing what Claprède has so happily called a veritable "short circuit."

Source: 2010s, Nomad: A Personal Journey Through the Clash of Civilizations (2010), Chapter 11, “School and Sexuality” (p. 154)

Les Loix du Mouvement et du Repos, déduites d'un Principe Métaphysique (1746)

sensation-complexes
Source: 20th century, The Analysis of Sensations (1902), p. 23, as quoted in Lenin as Philosopher: A Critical Examination of the Philosophical Basis of Leninism (1948) by Anton Pannekoek, p. 33

Source: De architectura (The Ten Books On Architecture) (~ 15BC), Book I, Chapter IV, Sec. 6

As quoted by Tanner, Bower, McLeish, and Gaspar in Ch. 1. "Unity and Symmetry in the De Luce of Robert Grosseteste," Robert Grosseteste and the pursuit of Religious and Scientific Learning in the Middle Ages (2016) ed., Jack P. Cunningham, Mark Hocknull, p. 17.
De artibus liberalibus (c. 1222-1237)

p, 125
Spiritualism and the Christian Faith (1918)

"This We Have Now" in Ch. 25 : Majesty. p. 262
The Essential Rumi (1995)
Context: This
that we are now
created the body, cell by cell,
like bees building a honeycomb. The human body and the universe
grew from this, not this
from the universe and the human body.