She seemeth prodigal of power, yet her rules are the maxims of frugality:
The plant refresheth the air, and the earth filtereth the water,
And dews are sucked into the cloud, dropping fatness on the world:
She hath, on a mighty scale, a general use for all things;
Yet hath she specially for each its microscopic purpose:
There is use in the prisoned air, that swelleth the pods of the laburnum;
Design in the venomed thorns, that sentinel the leaves of the nettle;
A final cause for the aromatic gum, that congealeth the moss around a rose:
A reason for each blade of grass, that reareth its small spire.
How knoweth discontented man what a train of ills might follow,