Three great scientific theories of the structure of the universe are
the molecular, the corpuscular and the atomic. A fourth affirms, with
Haeckel, the condensation or precipitation of matter from ether --
whose existence is proved by the condensation or precipitation...
A fifth theory is held by idiots, but it is doubtful if they know any
more about the matter than the others.
MOLECULE, n. The ultimate, indivisible unit of matter. It is
distinguished from the corpuscle, also the ultimate, indivisible unit
of matter, by a closer resemblance to the atom, also the ultimate,
indivisible unit of matter....