Four walls enclose men, yet how calm they are!

They hang up pictures that they may forget

What walls are for in part, forget how far

They may not run and riotously let

Their laughter taunt the never-changing stars.

In circus cages wolves and tigers pace

For ever to and fro. They do not rest,

But seek so nervously the longed-for place.

Our picture-jungles would not end their quest,

Or pictures of another tiger's face.