Non-self in Impressionist Style by #dalle Non-self is a central concept in Buddhism, which makes it very different from other belief systems.

The main idea is this: that a so-called self or soul is made up of five aggregates (physical form, sense-feelings, perception, volition, sense-consciousnesses), each of which are not a self or soul. So there is no single thing you can point to which is a self or a soul.

Here is the Buddha explaining why there is no self nor soul, in each of the five aggregates:

In Pali:

Mendicants, form is not-self.
“Rūpaṁ, bhikkhave, anattā.

For if form were self, it wouldn’t lead to affliction. And you could compel form:
Rūpañca hidaṁ, bhikkhave, attā abhavissa, nayidaṁ rūpaṁ ābādhāya saṁvatteyya, labbhetha ca rūpe:

‘May my form be like this! May it not be like that!’
‘evaṁ me rūpaṁ hotu, evaṁ me rūpaṁ mā ahosī’ti.

But because form is not-self, it leads to affliction. And you can’t compel form:
Yasmā ca kho, bhikkhave, rūpaṁ anattā, tasmā rūpaṁ ābādhāya saṁvattati, na ca labbhati rūpe:

‘May my form be like this! May it not be like that!’
‘evaṁ me rūpaṁ hotu, evaṁ me rūpaṁ mā ahosī’ti.

(PJ’s note: this repeats completely for the other five aggregates: feeling, perception, volition, consciousness).

https://suttacentral.net/sn22.59/en/sujato?layout=linebyline&reference=none&notes=asterisk&highlight=false&script=latin

In the Chinese parallel:

It was then that the Bhagavān addressed the monks,
爾時,世尊告諸比丘:

“Form is not the self.
「色非是我。

If form were the self, it wouldn’t be that illness and pain arise from form, and there wouldn’t be the desire about form:
若色是我者,不應於色病苦生,亦不應於色欲:

‘Let it be so; let it not be so.’
『令如是,不令如是。』

It’s because form is without self that there’s illness and pain that arise from it, and these desires are possible:以色無我故,於色有病有苦生,亦得於色欲:

‘Let it be so; let it not be so.’
『令如是,不令如是。』

Feeling, perception, volition, and consciousness are likewise.
受、想、行、識亦復如是。

https://suttacentral.net/sa33/en/patton?layout=linebyline&reference=none&notes=asterisk&highlight=false&script=latin