“Well,” said Pooh, “we keep looking for Home and not finding it, so I thought that if we looked for this Pit, we’d be sure not to find it, which would be a Good Thing, because then we might find something that we weren’t looking for, which might be just what we were looking for, really.
From “In which Tigger is unbounced”, in The House at Pooh Corner by A. A. Milne.