After this I saw in the night visions, and behold, a fourth beast [the Roman empire]–terrible, powerful and dreadful, and exceedingly strong. And it had great iron teeth; it devoured and crushed and trampled what was left with its feet. And it was different from all the beasts that came before it, and it had ten horns [symbolizing ten kings]. [Dan. 2:40-43; 7:23.]