One disease is never a perfect metaphor for another.
It might have been the perfect metaphor for Panetta's new job.
In the meantime, the weather is a perfect metaphor for the proceedings.
"I think you look at the Brooklyn delegation and it's a perfect metaphor for what is so wrong with the politics of today," he said.
I have come (with no little excitement) to understand that baseball is a perfect metaphor for hope in a democratic society.
They said some were fragile and took on oxygen - a perfect metaphor.
"We think it's a perfect metaphor for religious liberty," he said.
I think war is the perfect metaphor for human life.
Actually, I may have invented the perfect metaphor for the whole business!
Style without sacrifice - a perfect metaphor for the 90's.