p.26 It may be that the ultimate components of a universe,
whether they are ideal or other, are of at least two distinct types - terms and relations.
p.175 Now here in the separate organs of reception, conduction, and contraction
are all the essentials of the reflex-arc that is so important a part of animal physiology.
p.176-177 the reflex-arc... essentials are an irritable
end-organ that receives the stimulus, and is called a sense-organ or receptor : a differentiated
fibre that conducts the excitation, or conductor : and a contractile tissue that transforms this nervous
excitation into movement, or an effector... until now the capital importance of reflex-arcs has not been
recognized, nor these arcs fairly studied.
p.267 By way of further illustration let us consider, once more, the game
of chess, which is essentially, of course, a logical universe in which the rules of the game are postulates, and the moves
of the men on the board are an explicit system of terms in relation, which is generated by the rules.
p.322 "Physiologically," Munsterberg has said, "every
act, including the acts of free volition, is nothing but a reflex,"
