Knowing and doing
The things written down are called Mao's Selected Works
Knowing but unable to do
The things written down are chicken soup
Not knowing and unable to do
The things written down are dog shit
Not knowing but having done
The things written down are called review
Our life is as brilliant as a wisp of cosmic dust in the silent corner of the Oort Cloud
Our life is as humble as a stubborn stain that even the strongest flush in a public toilet can't wash away
