“There is only one religion, though there are a hundred versions of it.”

“If any religion had a chance of ruling over England, nay Europe within the next hundred years, it could be Islam.”

“The reason why the continental European is, to the Englishman or American, so surprisingly ignorant of the Bible, is that the authorized English version is a great work of literary art, and the continental versions are comparatively artless.”

“Thus, I blush to add, you can not be a philosopher and a good man, though you may be a philosopher and a great one.”

“I have defined the hundred per cent American as ninety-nine per cent an idiot.”

“La science est une nouvelle religion et la désinfection est son eau bénite.”

“The novelties of one generation are only the resuscitated fashions of the generation before last.”