J.M.W. Turner: Sketchbooks, Drawings and Watercolours

And where Power if Power could prevail
That urges all our actions yet without avail
Give impulse to our thoughts Fancy sight
Wake us for what [= want] of other words
Stands as a word indefinite yet weak
For fancy is in infancy [but inserted] a mere caprice
In Manhood headstrong patron sways
Yet still we hardly call it Fancy form
That forces on our mental quality
To guide thus wrong & right others doubt
Can claim thy aid who dares to ask
What is imagination where its seat within
That lift the soals of some to soar beyond
The power of perception yet by perception
Of material forms and qualities feebly shown
To pursue the unknown force that razes all
Passions that makes the difference betwixt
The fool and he of sense the indownment
Given at our birth