第四边 meaning in English

base leg

The day after his initiation at the lodge , pierre was sitting at home reading a book , and trying to penetrate to the significance of the square , which symbolised by one of its sides , god , by another the moral , by the third the physical , by the fourth the nature of both mingled
皮埃尔加入共济会分会后第二天，坐在家中看书，力图弄清四方形的意义，四方形的一边描绘着上帝，另一边标志着精神，第三边标志着肉体，第四边标志着混合物。有时他放下书本和四方形，脑海中拟订新生活计划。