Knowledge is the exclusive preserve of the learned and the wise. They are thus able to use this very effectively for acquiring power for themselves or for helping others stay in power.
Not only knowledge makes one wise but also makes him more humane and modest. Thus, we mostly find that such people are able to explain their point of view very convincingly and dynamically, thereby attracting a huge following.
There is no denying the fact that knowledge is power and this comes from extensive reading. ‘Read not to contradict but to weigh and consider’.
Therefore, by gaining knowledge people are able to command power, for his actions are justified and supported with reasoning. There in lies the essence of his power.