Come you Spirits, That tend on mortall thoughts, vnſex me here, And fill me from the Crowne to the Toe, top-full Of direſt Crueltie: make thick my blood, Stop vp th’acceſſe, and paſſage to Remorſe, That no compunctious viſitings of Nature Shake my fell purpoſe, nor keepe peace betweene Th’effect, and hit.
Source: wiktionary