Gustave le Bon
In existographies, Gustave Le Bon (114-24 BE) (1841-1931 ACM) (IQ:155|#847) (CR:2) (LH:2) (TL:4) was a French social psychologist, sociologist, anthropologist, inventor, and amateur physicist, noted for 
In 1895, Le Bon, in his The Crowd: a Study of the Popular Mind, as cited by James Coleman (1994), building on Charles Darwin and Ernst Haeckel, employed the following chemical combination logic of crowd dynamics—comparing the behavior changes resulting via the combination of people to the behavior changes resulting from the combination of acids and bases: 
- “The most striking peculiarity presented by a psychological crowd is the following: Whoever be the individuals that compose it, however like or unlike be their mode of life, their occupations, their character, or their intelligence, the fact that they have been transformed into a crowd puts them in possession of a sort of collective mind which makes them feel, think, and act in a manner quite different from that in which each individual of them would feel, think, and act were he in a state of isolation. There are certain ideas and feelings which do not come into being, or do not transform themselves into acts except in the case of individuals forming a crowd. The psychological crowd is a provisional being formed of heterogeneous elements, which for a moment are combined, exactly as the cells which constitute a living body form by their reunion a new being which displays characteristics very different from those possessed by each of the cells singly. Contrary to an opinion which one is astonished to find coming from the pen of so acute a philosopher as Herbert Spencer, in the aggregate which constitutes a crowd there is in no sort a summing-up of or an average struck between its elements. What really takes place is a combination followed by the creation of new characteristics, just as in chemistry certain elements, when brought into contact, e.g. bases and acids, combine to form a new body possessing properties quite different from those of the bodies that have served to form it.”
Quotes | On
The following are quotes on Le Bons:
- “Thermodynamics, like Darwinism, became a reservoir of metaphors and arguments that were transposed from physics to social thought so that, to the same extent it is possible to speak of a social Darwinism, it is possible to speak of a ‘social thermodynamics’ as well. By the same token, the ideology of thermodynamics becomes mythopoieic, and the term ‘energy’ is borrowed from its scientific context to be turned into a mythical notion able to explain everything without any single counterfactual evidence. Thus, thermodynamics is interpreted — for example in Henry Adams  and Gustave le Bons  (Ѻ) — as a philosophy of history and as an explanation for the increasing disorder of society.”
- — Sergio Franzese (2008), The Ethics of Energy (pgs. 156-57)
Quotes | By
The following are quotes by le Bon:
- “The greater part of our daily actions are the result of hidden motives which escape our observation.”
- — Gustave le Bons (1895), The Crowd (§1.1, pg. 7) (Ѻ)
- “The most careful observations seem to prove that an individual immerged for some length of time in a crowd in action soon finds himself—either in consequence of the magnetic influence given out by the crowd, or from some other cause of which we are ignorant—in a special state, which much resembles the state of fascination in which the hypnotized individual finds himself in the hands of the hypnotizer.”
- — Gustave le Bon (1895), The Crowd (pg. 34)
- “What constitutes a people, a unity, a whole, becomes in the end an agglomeration of individuals lacking cohesion, and artificially held together for a time by its traditions and institutions. It is at this stage that men, divided by their interests and aspirations, and incapable any longer of self-government, require directing in their pettiest acts, and that the state exerts an absorbing influence. With the definite loss of the old ideal of genius, the race entirely disappears, it is a mere swarm of isolated individuals and returns to its original state—that of crowds. Its civilization is not without stability, and at the mercy of every chance.”
- — Gustave le Bons (1895), The Crowd (pg. 239); cited by Newell Sims (1924) in Society and Surplus (pgs. 321-22)
- “Civilizations as yet have only been created and directed by a small intellectual aristocracy, never by crowds. Crowds are only powerful for destruction.”
- — Gustave le Bons (1895), The Crowd (pg. #) (Ѻ)
- (a) Le Bon, Gustave. (1895). The Crowd: a Study of the Popular Mind. MacMillan, 1897.
(b) The Crowd: A Study of the Popular Mind – Wikipedia.
(c) Coleman, James S. (1994). Foundations of Social Theory (pg. 200). Harvard University Press.