Customs, morals--is there a difference? Author: Robert A. Heinlein Copy Quote More from Robert A. Heinlein “Don't ever become a pessimist, Ira; a pessimist is correct oftener than an opti…” “When One Teaches, Two Learn” “Ben, why should anybody want that much power?""Why does a moth fly toward light?” “All those religions--they contradict each other on every point but every one of…”