Private classes are supposed to have lasted from the break of day until half way through the night--a kind of "self strengthening" without rest. Pupils could only play when their teacher was having a nap, the only other option being to leave school altogether.
據說過去私塾的課程，可是從天亮排到半夜，真正的自強「不息」。小學生只有像春香鬧學一般，在先生打瞌睡時偷耍一陣，否則就只有逃學一途了。