how to make private class member private

[psychoticRabbit via Digitalmars-d-learn]

I cannot get my head around, why private is not private, in D.
How do I make a private member, private?

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module test;

import std.stdio;

void main()
{
    myClass c = new myClass();
    c.myPrivateClassMember= "wtf";
    writeln(c.myPrivateClassMember);
}

class myClass
{
    private string myPrivateClassMember; // private does not mean 
private anymore??
}

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