首楞嚴義疏注經 10.49

10.49

「又三摩中諸善男子，堅凝正心，魔不得便。窮生類本，觀彼幽清，常擾動元。於自他中起計度者，是人墜入四顛倒見，一分無常一分常論。」

"Furthermore, when all these good sons in samādhi keep their correct minds firmly concentrated, māras can find no advantage against them. Exhaustively probing the origin of the categories of living beings, they contemplate that hidden, clear, and constantly fluctuating source of motion. If they form calculations regarding self and other, they will fall into four inverted views, the theory that one part is impermanent and one part is permanent."