To use single and double quotes inside a meta tag attribute value, use <@SQ> for a single quote "'" and <@DQ> for a double quote """.
<@ASSIGN NAME="Important_Quote" VALUE="Yoda said, <@DQ>Do, or do not; there is no <@SQ>try<@SQ>.<@DQ>">
This example returns the following:
Yoda said, "Do, or do not; there is no 'try'."