Strings
Enclose strings in double quotes. For example:
"Parker Data Systems recommends a DSL modem"
White space in a string is treated as a character. Use a back-slash (\) as an escape character to include double quotes or a back-slash in a string. For example:
"Install these fonts in C:\\psfonts on your system"
If you put quotes around a number or anything else, it is treated as a string.