勿谓言之不预

勿 = 丿 + 勹 : Mnemonic symbol: bat wings.

勿 = 丿 + 勹 : The elephant wants to eat a banana in the space station's bathroom, but Willy Walrus suddenly flies by (using bat wings), snatches the banana away and shouts "no!"

谓 = 胃 + 讠 : Willy Walrus (w) used a hot water bottle (胃) to relief his stomach (胃) pain and it worked so well that he started selling those bottles himself. He even started an ad campaign and set up an advertising column (讠) in the Eiffel Tower's bathroom (ei4). There is a big picture of him saying (谓) how well the hot water bottle worked for him.

谓 = 胃 + 讠 : Willy Walrus (w) used a hot water bottle (胃) to relief his stomach (胃) pain and it worked so well that he started selling those bottles himself. He even started an ad campaign and set up an advertising column (讠) in the Eiffel Tower's bathroom (ei4). There is a big picture of him saying (谓) how well the hot water bottle worked for him.

言 = 亠 + 二 + 口 : The horizontal lines look like sound waves that emerge from an opening: I'll resemble 言 by a megaphone.

言 = 亠 + 二 + 口 : Maud Younger rushes into anthill and in the kitchen she uses a megaphone to loudly announce that the world revolution will soon start. She also tells the people that she has berets for everyone so that everyone will be able to be in style for the revolution. However she doesn't tell that she prepared the berets in another way: to each beret, she attached a mandarin via two capacitors which forms a formidable antenna, so that after the revolution, she'll be able to transmit her speeches directly to the wearers' brains.

之 = 丶 + Z : Mnemonic symbol: Sooo sleepy... "zZz" (the character looks like a "Z"). James II of England (zh) fell asleep in front of the space station (Ø1). He sleeps on a big petal leaf (丶), making loud "zZz" (之) sounds.

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.

预 = 予 + 页 : Yu the Great and Zai Yu are preparing their tax reports in advance in the space station's bathroom. Yu the Great is scribbling wildly on one sheet of paper after the other, and sheets of paper are flying all over the place. Zai Yu on the other hand just fell asleep and covered himself in a lot of sheets of paper. He covered himself with a sheet he made out of paper.