无常

无常（巴利语：अनिच्चा，anicca，梵语：अनित्य，anitya，藏语：.mw-parser-output .uchen{font-family:"Qomolangma-Dunhuang","Qomolangma-Uchen Sarchen","Qomolangma-Uchen Sarchung","Qomolangma-Uchen Suring","Qomolangma-Uchen Sutung","Qomolangma-Title","Qomolangma-Subtitle","Qomolangma-Woodblock","DDC Uchen","DDC Rinzin",Kailash,"BabelStone Tibetan",Jomolhari,"TCRC Youtso Unicode","Tibetan Machine Uni",Wangdi29,"Noto Sans Tibetan","Microsoft Himalaya"}.mw-parser-output .ume{font-family:"Qomolangma-Betsu","Qomolangma-Chuyig","Qomolangma-Drutsa","Qomolangma-Edict","Qomolangma-Tsumachu","Qomolangma-Tsuring","Qomolangma-Tsutong","TibetanSambhotaYigchung","TibetanTsugRing","TibetanYigchung"}མི་​རྟག་​པ་，藏语拼音：mi rtag pa），佛教术语，是常的反义字，字面意义为变异，指为一切世间万物终将变异，无常存者。是一切有为法的共相，为三相之一，即空性。佛教从因缘法的角度，说明诸有为法是因缘生，由于因缘会变异而终将灭坏，一切事物皆有生、住、灭的过程，因此具备无常这个共相。《阿含经》中记载，意以法为缘，而生意识。意识必须藉缘而生，有生之法终必坏灭，是无常之法。《杂阿含经》中的〈圣法印经〉，将观察无常分为无常、有为，行，从缘起，是患法，灭法，离欲法，断知法八者，《瑜伽师地论》称为无常八相。在部派佛教时期，对于无常产生了一种解说，强调必须透过刹那生灭中知无常，对此称之为“刹那无常”；或从其相续不断，称之为“相续无常”。佛说无常经. 印顺文教基金会. .