Summary
This quote implies that once someone becomes involved in Washington, whether in politics or government, there are only two ways for them to leave: through retirement or death. It cynically suggests that individuals rarely leave their political positions willingly and highlights the idea of Washington as a place that can be difficult to detach from. The use of the words "box" and "coffin" create a stark contrast between retirement, a generally positive exit, and death, a final and negative departure.