Is It true that matter cannot be created or destroyed?

[Outhouse]

Whether matter can be destroyed depends on what you mean by "matter" and what you mean by "destroyed".

Agreed. They are almost weasel words when exact context is not nailed down.

 

[PeterDonis]

They are almost weasel words when exact context is not nailed down

I think "weasel words" is a bit strong; the terms do have well-established meanings. They just don't have unique well-established meanings. But I agree that nailing down exact context is a good thing.