I didn't realise that Cameron would provide an even bigger reason to quote it again:
'I wish to be left alone,' said Scrooge. 'Since you ask me what I wish, gentlemen, that is my answer. I don't make merry myself at Christmas, and I can't afford to make idle people merry. I help to support the establishments I have mentioned—they cost enough: and those who are badly off must go there.'
'Many can't go there; and many would rather die.'
'If they would rather die,' said Scrooge, 'they had better do it, and decrease the surplus population."
A Christmas Carol by Charles Dickens, 1843.
And 169 years later, when we are supposedly better than back then, Prime Minister Scrooge policies exist; you can find the details here at The Independent. You can read how Cameron and his chums laughed as he described the welfare policies that are going to make "the poor poorer."
Meanwhile, the Devil laments...