A molcajete is a stone mortar and pestle from Mexico. They're great for grinding spices and making salsa and guacamole because they give everything a nice coarse and rustic feel. I've never collected anything, but I think I might start collecting these because each one is decorated differently.
A mathematical proof is beautiful, but when you're finished, it's really only about one thing. A story can be about many things.
It seems a long time since the morning mail could be called correspondence.