Access static property through static and non-static methods?

I have a class and it has some static, some not static methods. It has a static property. I'm trying to access that property inside all of it's methods, I can't figure out the right syntax.

What I have is this:

class myClass {
    static public $mode = 'write';
    static public function getMode() {
        return myClass::$mode; 
    }
    public function getThisMode() {
        return $this->mode;
    }
}

Can anyone tell me the actual syntax for this one?