It must, however, be remembered that no methodology of Political Science can lead to true conclusions, unless we take human nature into account. After all the State exists for man and it endeavours to cater to his needs in order to make his life happy. Man is the central subject of our study and we must go to his psychology to find out the really correct solution of his problems. Hitherto political thinkers had regarded man as a rational being and accepted this nature of man as a dogmatic truth and consequently the starting point of their investigations. Recently, Graham Wallas, in his book Human Nature in Politics, has revolted against this traditional assumption of human nature. Man according to Graham Wallas, is hardly rational in his behaviour. “If, indeed, a man were followed,” he writes, “through one ordinary day, without his knowing it, by a cinematographic camera and photographer and if all his acts and saying were produced before him next day, he would be astonished to find how few of them were the result of a deliberate search for the means attaining ends.”81 Whether we agree with Graham Wallas or not,