[GFischer]

Vita brevis,

ars longa,

occasio praeceps,

experimentum periculosum,

iudicium difficile.

https://en.wikipedia.org/wiki/Ars_longa,_vita_brevis

Also

“I have looked in the mirror every morning and asked myself: "If today were the last day of my life, would I want to do what I am about to do today?" And whenever the answer has been "No" for too many days in a row, I know I need to change something.” ― Steve Jobs

Good to read this occasionally (and Paul's take is nice)