Kurt Vonnegut:

“[What my uncle Alex] found objectionable about human beings was they never noticed it, when they were really happy.

“So, whenever he was really happy – you know, he could be sitting around in the shade, in the summertime, in the shade of an apple tree, and drinking lemonade and talking. Just sort of this back-and-forth buzzing like honey bees. And Uncle Alex would all of a sudden say, ‘If this isn’t nice, what is?’ and then we’d realize how happy we were; and we might have missed it.”

Kurt Vonnegut on David Brancaccio