Authors:

The pleasures of love are pains that become desirable, where sweetness and torment blend, and so love is voluntary insanity, infernal paradise, and celestial hell - in short, harmony of opposite yearnings, sorrowful laughter, soft diamond.

"The Island of the Day Before". Book by Umberto Eco, 1994.
The pleasures of love are pains that become desirable, where sweetness and torment blend, and so love is voluntary insanity, infernal paradise, and celestial hell - in short, harmony of opposite yearnings, sorrowful