Take one simple thing — almost anything — but take it extremely seriously, as if it was the only thing in the world, or maybe the entire world is in it — and by taking it seriously you’ll light up the sky.
The idea that we will make a society where literally everybody is graded, the good at the top, bad at the bottom, exactly done as it should be, is impossible. There are simply too many random factors: accidents, accidents of birth, accidents of things dropping on people's heads, illnesses, etc. We will never get to grade them, never get to grade people as they should.