In his speech today as he moved from president elect to president Obama he used the line "If you unclench your fist we will offer the hand of friendship". It was aimed at the dictators of the world, and those who rule with fear. It can of course be applied to a number of situations where people bluster and posture with apparent power.
I like the line, I like the visual. Good luck to him.
The full text is here on his blog