What is certain and no laughing matter is that existence is an evil for all the parts which make up the universe ... Not only individual men, but the whole human race was and always will be necessarily unhappy. Not only the human race but the whole animal world. Not only animals but all other beings in their way. Not only individuals, but species, genera, realms, spheres, systems, worlds.
Go into a garden of plants, grass, flowers. No matter how lovely it seems. Even in the mildest season of the year. You will not be able to look anywhere and not find suffering. That whole family of vegetation is in a state of souffrance, each in its own way. Here a rose is attacked by the sun, which has given it life; it withers, languishes, wilts. There a lily is sucked cruelly by a bee, in its most sensitive, most life-giving parts. Sweet honey is not produced by industrious, patient, good, virtuous bees without unspeakable torment for those most delicate fibers, without the pitiless massacre of flowerets. That tree is infested by an ant colony, that other one by caterpillars, flies, snails, mosquitoes ... The spectacle of such abundance of life when you first go into this garden lifts your spirits, and that is why you think it is a joyful place. But in truth this life is wretched and unhappy, every garden is like a vast hospital (a place much more deplorable than a cemetery), and if these beings feel, or rather, were to feel, surely not being would be better for them than being.