《韩非子·说林上》
走到山里没有水喝，隰朋说： 蚂蚁冬天住在山的南面，夏天住在山的北面。
行山中无水，隰朋曰： 蚁冬居山之阳，夏居山之阴。
Having entered into the mountains, they had no water to drink, and Xi Peng said: "In winter, ants live on the southern slopes of mountains, and in summer, on the northern slopes of mountains.