Notes From The Underground by Part 1 Chapter 3 Page 9

reality one drop of your own fat must be dearer to you than a hundred thousand of your fellow-creatures, and that this conclusion is the final solution of all so-called virtues and duties and all such prejudices and fancies, then you have just to accept it, there is no help for it, for twice two is a law of mathematics. Just try refuting it.

“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