MANICHEISM, n. The ancient Persian doctrine of an incessant warfare between Good and Evil. When Good gave up the fight the Persians joined the victorious Opposition.

Abstainer: a weak person who yields to the temptation of denying himself a pleasure.

IGNORAMUS, n. A person unacquainted with certain kinds of knowledge familiar to yourself, and having certain other kinds that you know nothing about.

PYRRHONISM- An ancient philosophy, named for its inventor. It consisted of an absolute disbelief in everything but Pyrrhonism. Its modern professors have added that.

Immoral: Inexpedient. Whatever in the long run and with regard to the greater number of instances men find to be generally inexpedient comes to be considered wrong, wicked, immoral. If mans notions of right and wrong have any other basis than this of expediency; if they originated, or could have originated, in any other way; if actions have in themselves a moral character apart from and nowise dependent on, their consequences-then all philosophy is a lie and reason a disorder of the mind.

MAMMON, n. The god of the world's leading religion. The chief temple is in the holy city of New York.

GRAVITATION, n. The tendency of all bodies to approach one another with a strength proportioned to the quantity of matter they contain-the quantity of matter they contain being ascertained by the strength of their tendency to approach one another. This is a lovely and edifying illustration of how science, having made A the proof of B, makes B the proof of A.