"man is the measure of all things" meaning in English

{
  "etymology_text": "According to Plato, the phrase was coined by Greek philosopher Protagoras.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "man is the measure of all things",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
            "Entries with incorrect language header",
            "Entry maintenance"
          ],
          "source": "w"
        }
      ],
      "glosses": [
        "the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth"
      ],
      "id": "en-man_is_the_measure_of_all_things-en-phrase-HtpzMjxs",
      "links": [
        [
          "doctrine",
          "doctrine"
        ],
        [
          "knowledge",
          "knowledge"
        ],
        [
          "subjective",
          "subjective"
        ],
        [
          "observation",
          "observation"
        ],
        [
          "human",
          "human"
        ],
        [
          "truth",
          "truth"
        ]
      ],
      "qualifier": "an expression of",
      "raw_glosses": [
        "(an expression of) the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth"
      ],
      "translations": [
        {
          "code": "ca",
          "lang": "Catalan",
          "sense": "Translations",
          "word": "l'home és la mesura de totes les coses"
        },
        {
          "code": "cmn",
          "lang": "Chinese Mandarin",
          "sense": "Translations",
          "word": "人类是一切的测量具"
        },
        {
          "code": "da",
          "lang": "Danish",
          "sense": "Translations",
          "word": "mennesket er alle tings mål"
        },
        {
          "code": "et",
          "lang": "Estonian",
          "sense": "Translations",
          "word": "kõigi asjade mõõt on inimene"
        },
        {
          "code": "fi",
          "lang": "Finnish",
          "sense": "Translations",
          "word": "ihminen on kaiken mitta"
        },
        {
          "code": "fr",
          "lang": "French",
          "sense": "Translations",
          "word": "l’homme est la mesure de toute chose"
        },
        {
          "code": "de",
          "lang": "German",
          "sense": "Translations",
          "word": "der Mensch ist das Maß aller Dinge"
        },
        {
          "code": "la",
          "lang": "Latin",
          "sense": "Translations",
          "word": "homo mensura"
        },
        {
          "code": "no",
          "lang": "Norwegian",
          "sense": "Translations",
          "word": "mannesket er målstokken for alle ting"
        },
        {
          "code": "pl",
          "lang": "Polish",
          "sense": "Translations",
          "word": "człowiek jest miarą wszystkiego"
        },
        {
          "code": "ru",
          "lang": "Russian",
          "roman": "čelovék jestʹ méra vsex veščej suščestvujuščix",
          "sense": "Translations",
          "word": "челове́к есть ме́ра всех вещей существующих"
        },
        {
          "code": "es",
          "lang": "Spanish",
          "sense": "Translations",
          "word": "el hombre es la medida de todas las cosas"
        },
        {
          "code": "sv",
          "lang": "Swedish",
          "sense": "Translations",
          "word": "människan är alltings mått"
        }
      ]
    }
  ],
  "word": "man is the measure of all things"
}

{
  "etymology_text": "According to Plato, the phrase was coined by Greek philosopher Protagoras.",
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "phrase"
      },
      "expansion": "man is the measure of all things",
      "name": "head"
    }
  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "Translation table header lacks gloss"
      ],
      "glosses": [
        "the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth"
      ],
      "links": [
        [
          "doctrine",
          "doctrine"
        ],
        [
          "knowledge",
          "knowledge"
        ],
        [
          "subjective",
          "subjective"
        ],
        [
          "observation",
          "observation"
        ],
        [
          "human",
          "human"
        ],
        [
          "truth",
          "truth"
        ]
      ],
      "qualifier": "an expression of",
      "raw_glosses": [
        "(an expression of) the doctrine that all knowledge is subjective, being derived from observations made by humans, and there can be no objective truth"
      ]
    }
  ],
  "translations": [
    {
      "code": "ca",
      "lang": "Catalan",
      "sense": "Translations",
      "word": "l'home és la mesura de totes les coses"
    },
    {
      "code": "cmn",
      "lang": "Chinese Mandarin",
      "sense": "Translations",
      "word": "人类是一切的测量具"
    },
    {
      "code": "da",
      "lang": "Danish",
      "sense": "Translations",
      "word": "mennesket er alle tings mål"
    },
    {
      "code": "et",
      "lang": "Estonian",
      "sense": "Translations",
      "word": "kõigi asjade mõõt on inimene"
    },
    {
      "code": "fi",
      "lang": "Finnish",
      "sense": "Translations",
      "word": "ihminen on kaiken mitta"
    },
    {
      "code": "fr",
      "lang": "French",
      "sense": "Translations",
      "word": "l’homme est la mesure de toute chose"
    },
    {
      "code": "de",
      "lang": "German",
      "sense": "Translations",
      "word": "der Mensch ist das Maß aller Dinge"
    },
    {
      "code": "la",
      "lang": "Latin",
      "sense": "Translations",
      "word": "homo mensura"
    },
    {
      "code": "no",
      "lang": "Norwegian",
      "sense": "Translations",
      "word": "mannesket er målstokken for alle ting"
    },
    {
      "code": "pl",
      "lang": "Polish",
      "sense": "Translations",
      "word": "człowiek jest miarą wszystkiego"
    },
    {
      "code": "ru",
      "lang": "Russian",
      "roman": "čelovék jestʹ méra vsex veščej suščestvujuščix",
      "sense": "Translations",
      "word": "челове́к есть ме́ра всех вещей существующих"
    },
    {
      "code": "es",
      "lang": "Spanish",
      "sense": "Translations",
      "word": "el hombre es la medida de todas las cosas"
    },
    {
      "code": "sv",
      "lang": "Swedish",
      "sense": "Translations",
      "word": "människan är alltings mått"
    }
  ],
  "word": "man is the measure of all things"
}