G.E.Moore`a “Dowód na istnienie świata zewnętrznego” raz jeszcze

In the article I am trying one more time to examine G.E. Moore's Proof of an External World, including new views on the problem. The paper is divided in four parts, in which I am analysing following problems: (1) What is the object Moore's proof. (2) What is purpose of this proof. (3) What are Moore’s mistakes and shortcomings. (4) How it is possible to defend Moore's proof. The main hypothesis underlying these analysis is that if we will assume that Moore wasn't an "idiot" and philosophical ignoramus (how, according to John Greco's, many critics suggest), one should read his receipt out as attempt of the alteration of what is called today "classical” theory of the knowledge.