Curiously

do hard things

easy things are:

these are easy to do, they are designed to be satisfying.

hard things to do:

The former, entertains us, informs us a little, shapes our behaviour and thinking and even influences culture. But they are recreational activities. They shouldnt be the core purpose of human exisitence.

Human existence becomes interesting and expansive if we do hard things. By doing hard things our capabilities increase and opportunities arise.