"first truth" meaning in English

{
  "forms": [
    {
      "form": "first truths",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first truth (plural first truths)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "examples": [
        {
          "ref": "1836, John Abercrombie, Jacob Abbott, The Philosophy of the Moral Feelings",
          "text": "These are the principles also treated of, in a former work, under the name of First Truths. They are not, like our knowledge of the other kind, the result of any process either of investigation or of reasoning; and, for the possession of them, no man either depends upon his observation, or has recourse to that of other men.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A statement that is not proved but rather supposed or held as obvious, forming together with other such statements the basis of a system of statements obtained from them by inference; an axiom."
      ],
      "id": "en-first_truth-en-noun-6exeekAz",
      "links": [
        [
          "axiom",
          "axiom"
        ]
      ],
      "related": [
        {
          "word": "first principle"
        }
      ]
    }
  ],
  "word": "first truth"
}

{
  "forms": [
    {
      "form": "first truths",
      "tags": [
        "plural"
      ]
    }
  ],
  "head_templates": [
    {
      "args": {},
      "expansion": "first truth (plural first truths)",
      "name": "en-noun"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "noun",
  "related": [
    {
      "word": "first principle"
    }
  ],
  "senses": [
    {
      "categories": [
        "English countable nouns",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English nouns",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1836, John Abercrombie, Jacob Abbott, The Philosophy of the Moral Feelings",
          "text": "These are the principles also treated of, in a former work, under the name of First Truths. They are not, like our knowledge of the other kind, the result of any process either of investigation or of reasoning; and, for the possession of them, no man either depends upon his observation, or has recourse to that of other men.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "A statement that is not proved but rather supposed or held as obvious, forming together with other such statements the basis of a system of statements obtained from them by inference; an axiom."
      ],
      "links": [
        [
          "axiom",
          "axiom"
        ]
      ]
    }
  ],
  "word": "first truth"
}