“I do the very best I know how, the very best I can, and I mean to keep on doing so until the end.”

“If I were to try to read, much less answer, all the attacks made on me, this shop might as well be closed for any other business. I do the very best I know how - the very best I can; and I mean to keep doing so until the end. If the end brings me out all right, what's said against me won't amount to anything. If the end brings me out wrong, ten angels swearing I was right would make no difference.”

“When I say do your best, I mean your very best. You are capable of so much more.”

“I do the very best I can, I mean to keep going. If the end brings me out all right, then what is said against me won't matter. If I'm wrong, ten angels swearing I was right won't make a difference.”

“I'm the best there is at what I do but what I do best isn't very nice”

“Do the best you can. But I want to emphasize that it be the very best. We are too prone to be satisfied with mediocre performance. We are capable of doing so much better.”