The rule is, jam to-morrow and jam yesterday--but never jam to-day.'

'It MUST come sometimes to "jam to-day,"' Alice objected.

'No, it can't,' said the Queen. '
It's jam every OTHER day: to-day isn't any OTHER day, you know.'

'I don't understand you,' said Alice. 'It's dreadfully confusing!'

'That's the effect of living backwards,' the Queen said kindly: 'it always makes one a little giddy at first--'

'Living backwards!' Alice repeated in great astonishment. 'I never heard of such a thing!'

'--but there's one great advantage in it, that one's memory works both ways.'

‘I'm sure MINE only works one way,' Alice remarked. 'I can't remember things before they happen.'

'It's a poor sort of memory that only works backwards,' the Queen remarked.

Autor: Lewis Carroll