"that way madness lies" meaning in English

{
  "etymology_text": "From The Tragedy of King Lear (c. 1606), see quotations.",
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    {
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      "expansion": "that way madness lies",
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  "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"
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          "source": "w"
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      "examples": [
        {
          "ref": "c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iv], page 297, column 2:",
          "text": "Your old kind Father, whoſe franke heart gaue all, / O that way madneſſe lies, let me ſhun that: / No more of that.",
          "type": "quote"
        },
        {
          "ref": "1994 September 16, Roger Ebert, “Timecop”, in Chicago Sunday Times, archived from the original on 2005-11-13:",
          "text": "You see what we're up against here. \"Timecop,\" a low-rent \"Terminator,\" is the kind of movie that is best not thought about at all, for that way madness lies.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The mentioned activity will cause frustration, anger, etc."
      ],
      "id": "en-that_way_madness_lies-en-phrase-lz0cjA5i",
      "links": [
        [
          "frustration",
          "frustration#English"
        ],
        [
          "anger",
          "anger#English"
        ]
      ],
      "raw_glosses": [
        "(hyperbolic) The mentioned activity will cause frustration, anger, etc."
      ],
      "synonyms": [
        {
          "word": "that way lies madness"
        }
      ],
      "tags": [
        "excessive"
      ]
    }
  ],
  "word": "that way madness lies"
}

{
  "etymology_text": "From The Tragedy of King Lear (c. 1606), see quotations.",
  "head_templates": [
    {
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      "expansion": "that way madness lies",
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  ],
  "lang": "English",
  "lang_code": "en",
  "pos": "phrase",
  "senses": [
    {
      "categories": [
        "English entries with incorrect language header",
        "English hyperboles",
        "English lemmas",
        "English multiword terms",
        "English phrases",
        "English terms with quotations",
        "Pages with 1 entry",
        "Pages with entries"
      ],
      "examples": [
        {
          "ref": "c. 1603–1606, William Shakespeare, “The Tragedie of King Lear”, in Mr. William Shakespeares Comedies, Histories, & Tragedies […] (First Folio), London: […] Isaac Iaggard, and Ed[ward] Blount, published 1623, →OCLC, [Act III, scene iv], page 297, column 2:",
          "text": "Your old kind Father, whoſe franke heart gaue all, / O that way madneſſe lies, let me ſhun that: / No more of that.",
          "type": "quote"
        },
        {
          "ref": "1994 September 16, Roger Ebert, “Timecop”, in Chicago Sunday Times, archived from the original on 2005-11-13:",
          "text": "You see what we're up against here. \"Timecop,\" a low-rent \"Terminator,\" is the kind of movie that is best not thought about at all, for that way madness lies.",
          "type": "quote"
        }
      ],
      "glosses": [
        "The mentioned activity will cause frustration, anger, etc."
      ],
      "links": [
        [
          "frustration",
          "frustration#English"
        ],
        [
          "anger",
          "anger#English"
        ]
      ],
      "raw_glosses": [
        "(hyperbolic) The mentioned activity will cause frustration, anger, etc."
      ],
      "tags": [
        "excessive"
      ]
    }
  ],
  "synonyms": [
    {
      "word": "that way lies madness"
    }
  ],
  "word": "that way madness lies"
}