Mein Kampf by Adolf Hitler

The strength of the old state rested on three pillars: the monarchical form of government, the civil service, and the army. The Revolution of 1918 abolished the form of government, dissolved the army and abandoned the civil service to the corruption of party politics. Thus the essential supports of what is called the Authority of the State were shattered. This authority nearly always depends on three elements, which are the essential foundations of all authority.

Popular support is the first element which is necessary for the creation of authority. But an authority resting on that foundation alone is still quite frail, uncertain and vacillating. Hence everyone who finds himself vested with an authority that is based only on popular support must take measures to improve and consolidate the foundations of that authority by the creation of force. Accordingly we must look upon power, that is to say, the capacity to use force, as the second foundation on which all authority is based. This foundation is more stable and secure, but not always stronger, than the first. If popular support and power are united together and can endure for a certain time, then an authority may arise which is based on a still stronger foundation, namely, the authority of tradition. And, finally, if popular support, power, and tradition are united together, then the authority based on them may be looked upon as invincible.