You have noticed that the human being is a curiosity. In times past he has had (and worn out and flung away) hundreds and hundreds of religions; today he has hundreds and hundreds of religions, and launches not fewer than three new ones every year. I could enlarge on that number and still be within the facts.

What Is Man? and Other Philosophical Writings (ed. Univ of California Press, 1973) - ISBN: 9780520016217