Doubt is the father of invention.
HOW SPRINGS CAME FIRST
by Robert Herrick
These springs were maidens once that loved,
But lost to that they most approved:
My story tells, by Love they were
Turn'd to these springs which we see here:
The pretty whimpering that they make,
When of the banks their leave they take,
Tells ye but this, they are the same,
In nothing changed but in their name.