【推陈出新】〖tu chén ch xn〗[bring forth the new through the old; bring forth sth. new from the old; develop our own new art by weeding through the old; develop the new through critical assimilation of the old]

推贤任重工农兵，

陈制尽除举国营。

出类拔群发明奖，

新硎初试领尖峰。