The truth about the green spectacles is the perfect representation of the Wizard’s character. He doesn’t lie out of malice; instead, he gives an added tint of illusion to the world to make his people happier. His good intentions combined with his selfish deceptions make the Wizard a uniquely morally gray character when compared to the other characters in Oz. While the witches are either purely good or purely evil, the Wizard of Oz lies somewhere in the middle. This may be because he comes from the (literally and figuratively) gray country that Dorothy calls home, where good and evil aren’t as clearly defined. While the Wizard tries to convince Dorothy’s friends that they already embody the qualities they believe they lack, it's clear that they won’t stop doubting themselves without further help.