Many years have passed since that night. The wall of the staircase up which I had watched the light of his candle gradually climb was long ago demolished. And in myself, too, many things have perished which I imagined would last for ever, and new ones have arisen, giving birth to new sorrows and new joys which in those days I could not have foreseen, just as now the old are hard to understand.

Illness is the doctor to whom we pay most heed; to kindness, to knowledge, we make promise only; pain we obey.

And so when studying faces, we do indeed measure them, but as painters, not as surveyors.

Only through art can we get outside of ourselves and know another's view of the universe which is not the same as ours and see landscapes which otherwise would remain unknown to us like the landscapes of the moon. Thanks to art, instead of seeing a single world, our own, we see it multiply until we have before us as many worlds as there are original artists.

The one thing more difficult than following a regime is keeping from imposing it on others.

... But all the feelings that evoke in us the joy or the misfortune of a real person are only produced in us through the intermediary of an image of that joy or that misfortune; the ingeniousness of the first novelist was in understanding that, in the apparatus of our emotions, since the image is the only essential element, the simplification which consists of purely and simply suppressing the factual characters is a definitive improvement.

We do not receive wisdom, we must discover it for ourselves, after a journey through the wilderness which no one else can make for us, which no one can spare us, for our wisdom is the point of view from which we come at last to regard the world. The lives that you admire, the attitudes that seem noble to you, have not been shaped by a paterfamilias or a schoolmaster, they have sprung from very different beginnings, having been influenced by evil or commonplace that prevailed round them. They represent a struggle and a victory.