Courtesy is only a thin veneer on the general selfishness.

Love has its own instinct, finding the way to the heart, as the feeblest insect finds the way to its flower, with a will which nothing can dismay nor turn aside.

Our heart is a treasury; if you pour out all its wealth at once, you are bankrupt.

In the first woman we love, we love everything. Growing older, we love the woman only.

The prodigality of millionaires is comparable only to their greed of gain. Let some whim or passion seize them and money is of no account. In fact these Croesuses find whims and passions harder to come by than gold.

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.

The habits of every animal are, at least in the eyes of man, constantly similar in all ages. But the habits, the clothes, the words and the dwelling of a prince, a banker, an artist, a bourgeois, a priest and a pauper, are wholly dissimilar and change at the will of civilizations.