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.

Social progress can be measured by the social position of the female sex.

虽然有千里之远，我仍然会去的；即使富贵，我也不会贪图！——虽然我很穷，但是我能忍受贫穷。这句话用来形容一个社会再现实不过了。再美好的理想都会逐渐实现；再好的理想都会实现。这句话告诉我们要以努力作为人生的目标。