And you appear to be fairly rude to someone you don’t know.

No idea why you’d come to that conclusion.

If homework is set with the expectation that it is to be done, then the counter-expectation is that it’s marked promptly and returned.

However, “You Must, You Could, and You Might Enjoy” might also be made use of.

It struck me as crap, frankly. “Please don’t eat in the library” is enough.

Another failed author turned librarian? :/

Religion, phylosophy and science have all been seeking the answer to this question for so many centuries. It won’t surprise anyone when I admit that I don’t have the answer!

Nothing more than that, in humanity’s frame of reference, things come into being, exist, and deteriorate. I have no reason to think the Universe is any different, since it seems to be made of the same stuff.

Responding as a faithless person :

… and yet the grit in the oyster persists : in humanity’s frame of reference, something has never been created out of nothing.

… so not much has changed in a hundred years then.