what does "withhold no sacrifice" mean?

Question

Reading Churchill's speech, I don't think I understand the following "withhold no sacrifice, grudge no toil, seek no sordid gain", what does this statement mean?

Answer 1

To "withhold no sacraifice" can be interpreted as meaning to strive for any necessary changes despite the possible outcomes. Outcomes can be negative or positive, and you accept responsibility for those outcomes in hope that the change is for the better.