In Act 4, Scene 6, after Edgar has led him to “the top of the cliff,” Gloucester speaks these words:
O you mighty gods!
This world I do renounce, and, in your sights,
Shake patiently my great affliction off:
If I could bear it longer, and not fall
To quarrel with your great opposeless wills,
My snuff and loathed part of nature should
Burn itself out. If Edgar live, O, bless him!
Now, fellow, fare thee well.
In the hypothetical scenario he posits here, Gloucester compares himself to