One of the saddest things is that the only thing that a man can do for eight hours a day, day after day, is work. You can't eat eight hours a day nor drink for eight hours a day nor make love for eight hours all you can do for eight hours is work. Which is the reason why man makes himself and everybody else so miserable and unhappy.
No one is without Christianity, if we agree on what we mean by that word. It is every individual's individual code of behavior by means of which he makes himself a better human being than his nature wants to be, if he followed his nature only. Whatever its symbol cross or crescent or whatever that symbol is man's reminder of his duty inside the human race.