Yuval Noah Harari

One of history's few iron laws is that luxuries tend to become necessities and to spawn new obligations.

Nobody wants to pay taxes, but everyone is happy to invest.

Our children's books, our iconography and our TV screens are still full of giraffes, wolves and chimpanzees, but the real world has very few of them left.

As Nietzsche put it, if you have a why to live, you can bear almost any how.