知
=
口
+
矢
:
Mnemonic symbol: Francis Bacon is attributed to have stated "scientia potentia est", "knowledge is power". I'll thus represent 知 by Francis Bacon. Francis Bacon (知) and James II of England (zh) are playing darts (矢) in front of the space station (Ø1). Because they lack a dart board they just use a mandarin (口).
更
=
丈
+
日
:
人心不足，蛇吞象: A person who always wants more is like a snake which wants to eat an elephant.
更
=
丈
+
日
:
Guy Fawkes found a snake who ate an elephant in the engine's bathroom, and now it can't move anymore. Together with his friends Bigfoot and the sun, he carries it out of the bathroom.