Draw a stone on the fifth day … Du Fu's career is good at diligence and idleness, and it is ruined by thinking … The diligence of an active mind with the vast imagination of Han Yu's spirit is a genius … Diderot's smart people will put aside all distractions and concentrate on learning only one subject, so they must learn it well … In fact, any sudden inspiration from Goethe can't replace long-term kung fu … Rodin's science needs all human life … Pavlov's talent can always grow up through independent activities … Chernyshevski only Only those who have completed the hard work of their development for a long time and immersed themselves in it for a long time can expect to achieve something … Hegel, what is the way? It is trampled from the place where there is no road and opened up from the place where there are only thorns ... Lu Xun's chisel can make the road straight, but only the rugged and uncut road is the road of genius ... Blake's growth of any new thing has to go through difficulties and twists ... Mao Zedong