" The Buddha taught that the three basic realities of the universe are that everything is constantly changing, nothing has any enduring essence, and nothing is completely satisfying. You can explore the furthest reaches of the galaxy, of your body, or of your mind, but you will never encounter something that does not change, that has an eternal essence, and that completely satisfies you. "

― Yuval Noah Harari , 21 Lessons for the 21st Century