What skills or habits have lasting value through time?
I'm thinking especially of things that will be useful for the rest of your life, and apply to almost everyone. Things with huge ROI. More obvious things: * Exercise 30-60 minutes a day. An obvious one, but more health means more energy and likely a longer life too. If you...
Remember when tempted to keep going 'til it burns
that everything has a point of diminishing returns.