The Heart of Darkness: Theme Based On Lies and The Good and Evil In Man In Joseph Conrad's Heart of Darkness, there is a great interpretation of the feelings of the characters and uncertainties of the Congo. Although Africa, nor the Congo are ever really referred to, the Thames river is mentioned as support. This intricate story reveals much symbolism due to Conrad's theme based on the lies and good and evil, which interact together in every man. Today, of course, the situation has changed. Most literate people know that by probing into the heart of