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.

The more you see yourself as a teacher, mentor and coach, the more likely you're going to be successful in building your own enterprise.

自由就像我们呼吸的空气；没有它，我们会窒息。