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).
耻
=
止
+
耳
:
Charlie Chaplin (ch) is disgraced (耻) by hearing what is happening on earth, so in the space station (Ø3) he decides to put a barrier (止) into each of his ears (耳) so that he won't have to listen anymore.