因循守舊

因 = 囗 + 大 : Mnemonic symbol: the close reasoner René Descartes.

因 = 囗 + 大 : In front of the encampment ((e)n1), René Descartes (因), Maud Younger (y) and a robot (大) are starting a big rave. The robot sits inside a big box (囗) and is the master of ceremony, while René and Maud are dancing on the square. They started this rave to collect money for a good cause (因).

循 = 彳 + 盾 : Xu Xian (xu) is following (循) his hero into the encampment. In the kitchen ((e)n2) he is walking a path made out of shields (盾) wearing black sneakers (彳).

守 = 宀 + 寸 : Sherlock Holmes just graduated from police school and stands guard in the outhouse. Still wearing his graduation cap and carrying a huge shield, he's protecting the outhouse's art. The visitors are a bit afraid of him, so he thumbs up to show them that there's no danger from him.

旧 = 丨 + 日 : In the year 2076 Joan of Arc (ji) and the sun (日) meet again in the outhouse's bathroom (ou4). They are both very old (旧) and have to use dinosaur bones (丨) as crooks.