There are several things which a sovereign cannot do; firstly, because he is a human being, and; secondly, because he has to deal with human beings. Gilchrist has called them “the limits of human endurance”, while Dicey has called them the internal limits, inasmuch as the arise from the very nature of the body or person exercising sovereignty.
The power of a sovereign are inevitably limited by the strength or weakness, capacity or incapacity of his character, mind, body and personality and also by his education, knowledge, religion, morals and environment.
The same is the case of his subjects or citizens. They are also conditioned by their environment, education, religion and moral system, and determined by their habits, character, minds, body and personality.