I actually felt like Benjamin’s comments reflected his idea that nothing lasts. By saying he lives a long time - paired with how the other animals towards the end of the book don’t even remember Jones or the rebellion much - he’s saying he’s seen eras come and go and that it’s taught him how nothing is permanent. Thus, he feels like there is no point putting your heart or efforts towards anything, as you’ll eventually come away spent on something that’ll crumble. No, it’s better to keep your head down and go with the flow and try to live alright under any rule the times may favor. … To me, Benjamin represented the pacifists and the cynical. The ones who for one reason or another can’t be bothered to try. And the thing is, Old Ben’s right in the end (if we read it this way); what the animals thought were their salvation, crumbled, and became just another way of slavery. But the irony is that perhaps, if he weren’t so cynical, his efforts might have done something. Who knows where the book had gone, if he’d spoken up sooner. “Fools”, he calls them in the end. Well, if he was wiser, they could have benefited from his help. So, too, with the pacifists and the cynical in this world.