Kaufmann Goethe, P. 183: http://books.google.ca/books?id=JXFv3T-2JzIC&lpg=PA183&dq=If%20ever%20I%20recline&pg=PA183#v=onepage&q=If%20ever%20I%20recline&f=false

If ever I recline, calmed, on a bed of sloth,
You may destroy me then and there.
If ever flattering you should wile me
That in myself I find delight,
If with enjoyment you beguile me,
Then break on me, eternal night!
This bet I offer.

I accept it.