SHEI - Qui tacet consentit

It is proposed that if there are no significant motivated objections by next
 
  Friday 2nd June 2010

to use as a "multilingual symbol" the letter COPTIC CAPITAL LETTER SHEI.

Regards
C.

Qui tacet consentit
  Silence implies consent

ubi loqui debuit atque potuit
  when he ought to have spoken and was able to

Or in the more plain "Kimmo's doctrine": get on with it :-)