You actually provide me with an opportunity to make clear what I meant. I think I meant a couple of things, actually.
I guess I have to confess, I was partly inspired by Star Trek, and Vulcans, specifically. Vulcans have no emotions. Now, I am not saying there could be an alien civilization with no emotions. But what about just, say, less emotions, or more blunted emotions? This actually would make a good thread in itself (can a humanoid civilization exist, where the “people” have no emotions?).