Each thing may have two uses. What 's a star?

A world, or a world's sun: doesn't it serve

As taper also, timepiece, weather-glass,

And almanac? Are stars not set for signs

When we should shear our sheep, sow corn, prune trees?

The Bible says so.

Well, I add one use

To all the acknowledged uses, and declare

If I spy Charles's Wain at twelve to-night,

It warns me, "Go, nor lose another day,