• The Great Dictator, starring Charlie Chaplin and Paulette Goddard, 1940 - Ending Speech
• Chris Simmance - If I Lose
• Leonard Cohen - In My Secret Life
• Johnny Cash - I See A Darkness
• Max Ehrmann: Desiderata, 1927
• Wystan Hugh Auden: Funeral Blues, 1936
• Prof. Hans Peter Dürr - Wissenschaftliche Erkenntnis und Welterfahrung (1)
  Prof. Hans Peter Dürr - Wissenschaftliche Erkenntnis und Welterfahrung (2)

Interesting html-entities:

zero-width-space: &#x200B ​ ​ (breakpoint)
word-joiner: ⁠ ⁠ ⁠
no-break space:      
thin space:       (breakpoint)
narrow no-break space:    
no break hyphen: ‑
soft hyphen: ­ ­ ­
under bracket (⎵): ⎵ ⎵ ⎵ ⎵
open box / graphic for space (␣): ␣ ␣ ␣

E.g., A / B yields: A / B
A linebreak cannot occur between A and /.
A linebreak can occur between / and B.

More at

• https://dev.w3.org/html5/html-author/charref
• https://www.htmlsymbols.xyz/

Between tags <code> and </code> both special/reserved HTML characters (", ', &, <, >) and special/reserved markdown characters (\, `,*, _, {, }, [, ], (, ), #, +, -, ., !) need to be escaped, e.g., by preceding with \ or by using the corresponding HTML-entity.

You can link a comment - for doing this you need to obtain the url of that comment:

The timestamp of a comment provides a link to that comment. With most browsers right-clicking that time-stamp opens up a context-menu where you can select the action of copying the url of that link/comment.

Syntax-highlighting on the main site TeX-LaTeX StackExchange is subject to change.

In code-blocks of pattern <pre><code>...</code></pre> on the main-site syntax-highlighting currently prevents the proper displaying of things like <sub>..</sub>.

You can disable syntax-highlighting for a single block of code like this:

<!-- language: lang-none --><pre><code>...</code></pre>

```lang-none
...
```

Probably you can disable syntax-highlighting for all blocks of code like this:

<!-- language-all: lang-none -->