How can I create some Dictionary in a root class that will be shared by all derived classes?
<p>I have an abstract class and five other classes that inherit from it.<br>
I want to hold one instance of Dictionary in this abstract class - and give all the other classes the ability to add/remove values from this Dictionary.</p>

<p>I prefer to not define this Dictionary as 'Static'. </p>

<p>How can I do it?</p>
