Read it through once

“I want your permission to do what I think good this night. It is, I know, much to ask; and when you know what it is I propose to do you will know, and only then, how much. Therefore may I ask that you promise me in the dark, so that afterwards, though you may be angry with me for a time--I must not disguise from myself the possibility that such may be--you shall not blame yourselves for anything.”