Wisdom is the right use of knowledge. To know is not to be wise. Many men know a great deal and are all the greater fools for it. There is no fool so great a fool as a knowing fool. But to know how to use knowledge is to have wisdom.
The paranoiac is the exact image of the ruler. The only difference is their position in the world. One might even think the paranoiac the more impressive of the two because he is sufficient unto himself and cannot be shaken by failure.