A little insomnia is not without its value in making us appreciate sleep, in throwing a ray of light upon that darkness.

Desire makes everything blossom; possession makes everything wither and fade.

Every reader, as he reads, is actually the reader of himself. The writer's work is only a kind of optical instrument he provides the reader so he can discern what he might never have seen in himself without this book. The reader's recognition in himself of what the book says is the proof of the book's truth.

Illness is the most heeded of doctors: to goodness and wisdom we only make promises; pain we obey.

... we made much less happy by the kindness of a great writer, which strictly speaking we find only in his books, than we suffer from the hostility of a woman whom we have not chosen for her intelligence, but whom we cannot stop ourselves from loving.

I understood that all the material of a literary work was in my past life, I understood that I had acquired it in the midst of frivolous amusements, in idleness, in tenderness and in pain, stored up by me without my divining its destination or even its survival, as the seed has in reserve all the ingredients which will nourish the plant.

Indeed, among the lesser auxiliaries to success in love, an absence, the declining of an invitation to dinner, an unintentional, unconscious harshness are of more service than all the cosmetics and fine clothes in the world.