佛告须菩提：「诸菩萨摩诃萨应如是降伏其心！所有一切众生之类：若卵生、若胎生、若湿生、若化生；若有色、若无色；若有想、若无想、若非有想非无想，我皆令入无余涅槃而灭度之。如是灭度无量无数无边众生，实无众生得灭度者。何以故？须菩提！若菩萨有我相、人相、众生相、寿者相，即非菩萨。」
逐句解释
所有一切众生之类……我皆令入无余涅槃而灭度之
佛陀说：菩萨立下誓愿，要引导所有一切众生——无论以什么方式出生、有没有形体、有没有思想——全都进入完全的涅槃，得到彻底的解脱。这是大乘菩萨最根本的誓愿：不只是自己解脱，而是帮助所有众生解脱。
I shall lead all living beings — of whatever kind — into the complete nirvana of extinction
This is the defining vow of the Mahayana bodhisattva: not to seek personal liberation alone, but to commit to the liberation of every living being without exception. The sutra lists every conceivable category — born from eggs, wombs, moisture, transformation; with form or without; with thought, without thought, or neither. No being is left out. This total, unconditional commitment is what distinguishes the bodhisattva path. It is an almost incomprehensible aspiration — and the very next line will shatter the way we normally think about it.
如是灭度无量无数无边众生，实无众生得灭度者
这是第三章最关键的一句：虽然帮助了无量无数的众生，但菩萨心里没有「我在帮人」的念头，也没有「有众生被帮了」的想法。为什么？因为一旦执着于「我在度人」，那个「我」就变成了障碍。真正的慈悲是无我的。
Yet in truth, not a single being has been liberated
This is one of the most arresting statements in Buddhist literature. The bodhisattva vows to liberate all beings — and yet no being has been liberated. This is not a contradiction; it is a teaching about the nature of action without ego. The moment a helper thinks 'I am helping' and 'there is someone being helped,' ego has entered, and the act is no longer pure. True compassion has no sense of a giver, a receiver, or a gift. Like the sun shining — it does not think 'I am giving light'; it simply shines. The liberation happens, but no one 'did' it.
若菩萨有我相、人相、众生相、寿者相，即非菩萨
这是《金刚经》最重要的核心教义之一：「四相」。我相——执着于有个固定的「我」；人相——执着于「他人」的概念；众生相——执着于众生的分别；寿者相——执着于有个持续存在的生命。这四种执着，是一切烦恼的根源。只要还有这四种执着，就还不是真正的菩萨。
If a bodhisattva holds to the notion of self, person, being, or lifespan — they are not a bodhisattva
The four marks (四相) — self (我相), person (人相), sentient being (众生相), and lifespan (寿者相) — are the four fundamental illusions the Diamond Sutra sets out to dissolve. 'Self' is the idea of a fixed, independent 'me.' 'Person' is the idea that others are separate, solid entities. 'Sentient being' is the idea that there is a meaningful category of 'beings' to be saved. 'Lifespan' is the illusion of a continuous, persisting identity through time. All four are constructions of the mind. A bodhisattva who clings to any of these is still operating from ego — and ego-based compassion, however well-intentioned, is limited, conditional, and ultimately self-serving.
总结 · Summary
第三章给出了大乘佛教最核心的悖论：菩萨发誓度尽一切众生，但内心没有「我在度人」、也没有「众生被度了」的念头。真正的慈悲是无我的——没有施者，没有受者，没有功德可计。执着于「我」「他人」「众生」「生命」这四相，是成为真正菩萨的最大障碍。
Chapter 3 presents the central paradox of Mahayana Buddhism: the bodhisattva vows to liberate all beings, yet holds no thought of 'I am liberating' or 'beings are being liberated.' True compassion is egoless — no giver, no receiver, no merit to count. Attachment to the four marks of self, person, sentient being, and lifespan is the root obstacle on the bodhisattva path. To dissolve these marks is the work of the entire sutra.