On a heavy snowy day, there was a young man named Yangshi went to visit his teacher Cheng Yi. He found his teacher was sleeping when he arrived at the house. So he waited in the snow because he didn't want to wake his teacher up. When his teacher finally got up and the snow was very thick. Since then people use this idiom to say some one respect his teacher.
程顥(1032-1085)、程頤(1033-1107)兄弟,均為北宋時期著名理學(xué)家和教育家。楊時和游酢去拜會當(dāng)時著名的理學(xué)家程頤。程頤正在閉目養(yǎng)神,楊時、游酢二人恭敬地站在一旁,等了很長時間。程頤醒來,門外已雪深一尺。后人就以“程門立雪”作為尊師重道的范例。“程門立雪”也可說成“立雪程門”。
典故出自于《宋史·楊時傳》