“Upon my word, they will shout at you, it is no use protesting: it is a case of twice two makes four! Nature does not ask your permission, she has nothing to do with your wishes, and whether you like her laws or dislike them, you are bound to accept her as she is, and consequently all her conclusions. A wall, you see, is a wall⁠ ⁠… and so on, and so on.”

Merciful Heavens! but what do I care for the laws of nature and arithmetic, when, for some reason I dislike those laws and the fact that twice two makes four? Of course I cannot break through the wall by battering my head against it if I really have not the strength to knock it down, but I am not going to be reconciled to it simply because it is a stone wall and I have not the strength.