"all cats are grey at night" meaning in All languages combined

{
  "head_templates": [
    {
      "args": {
        "1": "en",
        "2": "proverb",
        "head": "all cats are grey at night"
      },
      "expansion": "all cats are grey at night",
      "name": "head"
    },
    {
      "args": {
        "head": "all cats are grey at night"
      },
      "expansion": "all cats are grey at night",
      "name": "en-proverb"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "proverb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "all cats are grey in the dark"
        }
      ],
      "categories": [
        {
          "kind": "other",
          "name": "British English",
          "parents": [],
          "source": "w"
        },
        {
          "kind": "other",
          "name": "English entries with incorrect language header",
          "parents": [
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            "Entry maintenance"
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          "name": "English proverbs",
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      "examples": [
        {
          "ref": "1937, Arnold Gingrich, “Another Salute to the Living”, in Esquire, volume 8, number 3, page 5",
          "text": "No matter how capable and cultivated the mind, how subtle and sensitive the spirit, the individual Negro is still not free. \"All cats are grey at night,\" and it is still long hours to go before dawn, over much of America. They order these things better in France. Double the honor, then, when a Negro succeeds, for half the strength of his genius must be spent in raising himself to the level of his inferiors, in overcoming the handicap of color.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of all cats are grey in the dark"
      ],
      "id": "en-all_cats_are_grey_at_night-en-proverb-JqRgU~21",
      "links": [
        [
          "all cats are grey in the dark",
          "all cats are grey in the dark#English"
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      "raw_glosses": [
        "(UK) Alternative form of all cats are grey in the dark"
      ],
      "tags": [
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    }
  ],
  "word": "all cats are grey at night"
}

{
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    {
      "args": {
        "1": "en",
        "2": "proverb",
        "head": "all cats are grey at night"
      },
      "expansion": "all cats are grey at night",
      "name": "head"
    },
    {
      "args": {
        "head": "all cats are grey at night"
      },
      "expansion": "all cats are grey at night",
      "name": "en-proverb"
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "proverb",
  "senses": [
    {
      "alt_of": [
        {
          "word": "all cats are grey in the dark"
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      "categories": [
        "British English",
        "English entries with incorrect language header",
        "English lemmas",
        "English multiword terms",
        "English proverbs",
        "English terms with quotations"
      ],
      "examples": [
        {
          "ref": "1937, Arnold Gingrich, “Another Salute to the Living”, in Esquire, volume 8, number 3, page 5",
          "text": "No matter how capable and cultivated the mind, how subtle and sensitive the spirit, the individual Negro is still not free. \"All cats are grey at night,\" and it is still long hours to go before dawn, over much of America. They order these things better in France. Double the honor, then, when a Negro succeeds, for half the strength of his genius must be spent in raising himself to the level of his inferiors, in overcoming the handicap of color.",
          "type": "quotation"
        }
      ],
      "glosses": [
        "Alternative form of all cats are grey in the dark"
      ],
      "links": [
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        ]
      ],
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        "(UK) Alternative form of all cats are grey in the dark"
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}