《论衡·卷七·道虚篇》
要是把人放在冷水里，没有开水与火的热量，鼻与口跟水面不相通，片刻之间，就会断气而死。
置人寒水之中，无汤火之热，鼻中口内不通於外，斯须之顷，气绝而死矣。
If you put a person in cold water, without the heat of boiling water and a fire, and the nose and mouth are not above the surface of the water, the person will die in an instant.