These are like riddles! I think this one is saying how every dish in the cantina is a product of hard work, and so we should respect the cooks.

Here are a few more, I'll let you figure them out:

(There are in my school cantina in Jiangshan.
I had to be sneaky to take these.)

Atleast they're honest.

(Taken in my apartment after a trip to Trust Mart.)

What does this actually mean?

(One of the many signs around the East Lake in Shaoxing.
Apparently it means "Be Careful.")

Please accept check-up our missionary consciously. And remember - all the regulation above should be abided by any violence of the related law.

(Taken outside a museum in Xikou, a small town once
home to many relatives of Chiang Kaishek. By the way, what are pericarps?)