`` why , only see how far out of our way the sailing takes us , laurence , and it is not as though i must have wind always , as the ship does : we will be home again before the end of summer , '' an estimate as optimistic as it was unlikely , temeraire not being able to judge the scale of the map so very well ; but at least they would likely be in england again by late september , and that was an incentive almost powerful enough to overrule all caution .