Jealous is every virtue of the others, and a dreadful thing is jealousy. Even virtues may succumb by jealousy.
Friedrich Nietzsche (2017). “THUS SPOKE ZARATHUSTRA (Modern Classics Series): The Magnum Opus of the World’s Most Influential Philosopher, Revolutionary Thinker and the Author of The Antichrist, The Birth of Tragedy & Beyond Good and Evil”, p.40, e-artnow
