“He had (like a calculator who means to do nothing else until such time as he has resolved his problem) put down beside him the cigar that, a short while ago, he had had in his mouth, but which he no longer had the necessary freedom of mind to smoke. On remarking the two crouched divinities borne on its arms by the chair set facing, you might've thought the Baron was seeking to solve the riddle of the Sphinx...
Now, the figure to which M. de Charlus was applying, and with such intensity, all his mental powers, was that proposed to him by the lineaments of the young Marquis de Surgis' face. It seemed to be, so profound was M. de Charlus' absorption before it, some heraldic motto, some conundrum, some problem in algebra, the riddle or formula of which he was seeking to penetrate.”
―
Marcel Proust,
Sodom and Gomorrah