If we have a correct theory but merely prate about it, pigeonhole it and do not put it into practice, then that theory, however good, is of no significance.
If we have a correct theory but merely prate about it, pigeonhole it and do not put it into practice, then that theory, however good, is of no significance.
如果有了正确的理论,只是把它空谈一阵,束之高阁,并不实行,那末,这种理论再好也是没有意义的.