“What moralists describe as the mysteries of the human heart are solely the deceiving thoughts, the spontaneous impulses of self-regard. The sudden changes in character, about which so much has been said, are instinctive calculations for the furtherance of our own pleasures. Seeing himself now in his fine clothes, his new gloves and shoes, Eugène de Rastignac forgot his noble resolve. Youth, when it swerves toward wrong, dares not look in the mirror of conscience; maturity has already seen itself there. That is the whole difference between the two phases of life.”

“To that point, he had always found the vicomtesse overflowing with friendly politeness, that sweet-flowing grace conferred by an aristocratic education, and which is never truly there unless it comes, automatically and unthinkingly, straight from the heart.[...]For anyone who had learned the social code, and Rastignac had absorbed it all in a flash, these words, that gesture, that look, that inflection in her voice, summed up all there was to know about the nature and the ways of men and women of her class. He was vividly aware of the iron hand underneath the velvet glove; the personality, and especially the self-centeredness, under the polished manners; the plain hard wood, under all the varnish. [...] Eugène had been entirely too quick to take this woman's word for her own kindness. Like all those who cannot help themselves, he had signed on the dotted line, accepting the delightful contract binding both benefactor and recipient, the very first clause of which makes clear that, as between noble souls, perfect equality must be forever maintained. Beneficience, which ties people together, is a heavenly passion, but a thoroughly misunderstood one, and quite as scarce as true love. Both stem from the lavish nature of great souls.”

“Yes, I can understand that a man might go to gambling table - when he sees that all that lies between himself and death is his last crown”

“Madame de Nucingen was already there, dressed with the deliberate aim of appealing to all eyes, knowing that thereby she would seem even more attractive to Eugène.”

“A murderer is less loathsome to us than a spy. The murderer may have acted on a sudden mad impulse; he may be penitent and amend; but a spy is always a spy, night and day, in bed, at table, as he walks abroad; his vileness pervades every moment of his life”

“If the artist does not fling himself, without reflecting, into his work, as Curtis flung himself into the yawning gulf, as the soldier flings himself into the enemy's trenches, and if, once in this crater, he does not work like a miner on whom the walls of his gallery have fallen in; if he contemplates difficulties instead of overcoming them one by one ... he is simply looking on at the suicide of his own talent.”

“The more he saw, the more he doubted. He watched men narrowly, and saw how, beneath the surface, courage was often rashness; and prudence, cowardice; generosity, a clever piece of calculation; justice, a wrong; delicacy, pusillanimity; honesty, a modus vivendi; and by some strange dispensation of fate, he must see that those who at heart were really honest, scrupulous, just, generous, prudent or brave were held cheaply by their fellow-men. ‘What a cold-blooded jest!’ said he to himself. ‘It was not devised by a God.’ From that time forth he renounced a better world, and never uncovered himself when a Name was pronounced, and for him the carven saints in the churches became works of art”