不俭则匮

不 = 丆 + 卜 : Bruno Bear (bu) is setting up a wind wheel (丆) with a voodoo staff (卜) in the space station's bathroom (Ø4). He also puts a "forbidden" sign (mnemonic symbol for 不) on it, to make clear that it may not (不) be stopped.

俭 = 亻 + 佥 : General Fu Qian (佥) is a very rich and respected general, but he still lives very frugal (俭). To amuse himself he merely visits the anthill's bar (an3) and puts one arm around Joan of Arc (ji) and Rosa Luxemburg (亻) respectively.

则 = 刂 + 贝 : Mnemonic symbol: 武则天 (Wu Zetian), the only female emperor of China in more than four millennia. It makes sense because for sure she wrote many official statements, for which 则 is the classifier.

则 = 刂 + 贝 : Just inside the elevator's kitchen, Zorro found a crab. He already has a kitchen knife in his hand and wants to kill and eat the crab, but Wu Zetian quickly writes an official rule that forbids the eating of crabs, much to Zorro's disappointment.