Hilaire Belloc, commenting on the 21st-century euthanasia debate:
It is worth noting, by the way, that the most sentimental people, who are loudest against the right to wage a just war, to execute a criminal, are just the people who are most likely to be in favour of 'putting incurables out of their pain,' which the commandment against murder most emphatically forbids.
From James V. Schall's The Life of the Mind, p. 105.