What he wanted was colours which would appear stronger and clearer in artificial light. He did not particularly care if they looked crude or insipid in daylight, for he lived most of his life at night, holding that night afforded greater intimacy and isolation and that the mind was truly roused and stimulated only by awareness of the dark; moreover he derived a peculiar pleasure from being in a well-lighted room when all the surrounding houses were wrapped in sleep and darkness, a sort of enjoyment in which vanity may have played some small part, a very special feeling of satisfaction familiar to those who sometimes work late at night and draw aside the curtains to find that all around them the world is dark, silent and dead.

Joris-Karl Huysmans