″‘You couldn’t have it if you did want it,’ the Queen said. ‘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.‘”
“Alice laughed. ‘There’s no use trying,’ she said: ‘one can’t believe impossible things.’
‘I daresay you haven’t had much practice,’ said the Queen. ‘When I was your age, I always did it for half-an-hour a day. Why, sometimes I’ve believed as many as six impossible things before breakfast.‘”