Is there a solitary wretch who hies 
To the tall cliff, with starting pace or slow, 
And, measuring, views with wild and hollow eyes 
Its distance from the waves that chide below; 
Who, as the sea-born gale with frequent sighs 
Chills his cold bed upon the mountain turf, 
With hoarse, half-utter'd lamentation, lies 
Murmuring responses to the dashing surf? 
In moody sadness, on the giddy brink, 
I see him more with envy than with fear; 
He has no nice felicities that shrink 
From giant horrors; wildly wandering here, 
He seems (uncursed with reason) not to know 
The depth or the duration of his woe.
Charlotte Smith
http://www.poemhunter.com/poem/sonnet-lxx-on-being-cautioned-against-walking-on/