The quotes correspond to literary devices as shown below:
"O miserable abundance, O beggarly riches!" – John Donne
This is an oxymoron, pairing terms like miserable abundance and beggarly riches that contradict but effectively describe the meaning.
"What a pity that youth must be wasted on the young." – George Bernard Shaw
This illustrates a paradox, stating that youth is wasted by those who are young, provoking reflection on this contradiction.
"I can resist anything but temptation." – Oscar Wilde
This also is a paradox, expressing a contradictory action where the speaker can resist everything except temptation itself.
"How is it possible to have a civil war?" – George Carlin
This serves as an oxymoron because it joins conflicting terms 'civil' and 'war', prompting the question of how a war can be civil.