Do a few things at mastery versus many things at mediocrity.
Run your own race. Who cares what others are doing? The only question that matters is 'Am I progressing?'
Great performers are preparing and practicing for a winning day while everyone else is still asleep.
If at all possible, commune with nature daily.
Time slips through our hands like grains of sand, never to return again.
Life is short. Be of use.