" and ' need are the standard string encapsulation markers. Everything inside "" or "" is the value of the string.
"this is a string"
'string is a string'
So what happens if you have "This is a "embedded" string"?
Is Embedded inside a string? no it's not. infact this would just break the string and now the word embedded is out the string and sitting in the code as meaning less code. That then breaks code and not just the string.
There are two solutions.
"this is an 'embedded' string where we switch string closing types"
'this is another \"embedded string string where we use an embedding marker for nesting more \\"strings inside\\" other\" strings"