财
=
才
+
贝
:
The King of Chu found a big money bag in the airplane's kitchen, but he knows that there is no free lunch. Carefully, he scans the content of the bag with his X-ray power vision, and inside the bag, he finds a crab waiting to strike on its prey.
lit. there are principles behind making money (idiom); fig. to have a knack for good business / knowing how to accumulate wealth / good at feathering one's own nest