A language for all

I love words, rounded with vowels and consonants, but sometimes they just get in the way. They can be used in such an elaborate way that the true meaning of what is being said gets hidden and stifled in their multi-faceted usage and jargon is hitched on to bewilder and confuse the listener.
These symbols on the bus can be read by anyone, with any tongue. We all know what they say with no wording.
Mind you, saying that, I remember Luke saying that an outlined symbol of a mother and child looked like a crime scene drawing. I think I must have let him watch too many crimmy films.