well, actually i installed around 4000 arabic fonts using font book, but later i found out that 90% of them were for windows only and they were curropt, so i accessed the fonts folder using 'Macintosh HD > system > library > fonts' and then selected all files (because i somehow thought that there are only the curropt fonts in there) and then i deleted them...later on i also emptied my trash and now i dont have any font!
i also dont have a time machine or anything else like that set up, so what to do now?