(Late reply since the HN mods have decided that they hate me so I was getting messages like &quot;you&#x27;re submitting too fast&quot;.)<p>The Pāli Canon, one of the oldest Buddhist canons. You can dismiss that if you want to, but they&#x27;re not wishy-washy concepts within the study of that canon.<p>It&#x27;s not like such a baseless accusation -- &quot;oh, they use them as technical words, they&#x27;re probably full of shit&quot; -- deserves an answer. If you&#x27;re really interested, do your own research next time. Not that you are.