Fyodor Dostoyevsky said this quote

“ There in its nasty, stinking, underground home our insulted, crushed and ridiculed mouse promptly becomes absorbed in cold, malignant and, above all, everlasting spite. For forty years together it will remember its injury down to the smallest, most ignominious details, and every time will add, of itself, details still more ignominious, spitefully teasing and tormenting itself with its own imagination. It will itself be ashamed of its imaginings, but yet it will recall it all, it will go over and over every detail, it will invent unheard of things against itself, pretending that those things might happen, and will forgive nothing. Maybe it will begin to revenge itself, too, but, as it were, piecemeal, in trivial ways, from behind the stove, incognito, without believing either in its own right to vengeance, or in the success of its revenge, knowing that from all its efforts at revenge it will suffer a hundred times more than he on whom it revenges itself, while he, I daresay, will not even scratch himself. On its deathbed it will recall it all over again, with interest accumulated over all the years… ”