Compromise used to mean that half a loaf was better than no bread. Among modern statesmen it really seems to mean that half a loaf; is better than a whole loaf.
How did you get back?' asked Vautrin. 'I walked,' replied Eugene. 'I wouldn't like half-pleasures, myself,' observed the tempter. 'I'd want to go there in my own carriage, have my own box, and come back in comfort. All or nothing, that's my motto.' 'And a very good one,' said Madame Vauquer.
...those little people, my brownies, who do one half of my work for me while I am fast asleep, and in all human likelihood do the rest for me as well, when I am wide awake and fondly suppose I do for myself.
Half the sum of attraction, on either side, might have been enough, for he had nothing to do, and she had hardly any body to love." (of Anne Elliot and Captain Wentworth, Persuasion)