Access Class Variable inside another class

[eluser]adamp1[/eluser]
I have the following setup

Code:

class Page extends Controller
{
  function Page()
  {
    $this->_variable = "something";
  }

  function index()
  {
    $this->Library->method();
  {
}

class Library
{
  function method()
  {
    // Use $_variable
  }
}

So is there a way the library can access the variable without it being passed explicitly to the class/method?