《论衡·卷二十五·诘术篇》
谁家门向与姓氏适宜，就会富裕尊贵，吉祥昌盛；谁家门向与姓氏不适宜，就会贫穷低贱，衰弱破败。
向得其宜，富贵吉昌；向失其宜，贫贱衰耗。
Whoever's door direction and surname are suitable, will be rich, noble, auspicious and prosperous; whoever's door direction and surname are unsuitable, will be poor, lowly, declining and impoverished.