To a census-taker, who asked him in 1872 if he was a Catholic, Hugo replied, "No. A Freethinker." Hugo predicted that Christianity would soon disappear, but men would still believe in God.
“Dissent is the mark of freedom,” wrote Bronowski, “These freedoms of tolerance have never been notable..., even when the dogma was Christian. Has there ever been a society which has died of dissent? Several have died of conformity in our lifetimes.”