Well of course Nicholas was not always uncompromising in his defence of autocracy. He gave in under intense pressure in 1905 to allow the Duma, after which (as has been mentioned by other posters) he proceeded to back-pedal. In this he followed the bad example of Louis XVI, rather than learning from his mistakes.
Article 1 of the old Fundamental Laws -- promulgated by Emperor Paul:
The emperor of all the Russias is an autocratic and unlimited monarch [Monarkh Samoderzhavnyi i neogranichennyi]. That his authority be obeyed not only out of fear, but also out of conscience, God himself commands.Under the new version of the Fundamental Laws, which were written in 1906, this article was changed to:
The emperor of all the Russias possesses supreme autocratic power [Verkhovnaia Samoderzhavnaia vlast]. That his authority be obeyed, not only out of fear, but also out of conscience, God himself commands. (this became article 4 under the new version)
Here are Nicholas II's comments on the matter in the State Council meeting, April 9, 1906:
HIS IMPERIAL MAJESTY: Let us now take up article 4. It contains the most important point in this entire matter. I have not ceased thinking about this question since I first beheld the draft of the revision of the Fundamental Laws. I kept the draft for a whole month and have thought about this question constantly also since the chairman of the Council of Ministers (he's referring to Witte here) submitted the altered draft to me. All this time I have been troubled by the doubt whether I have the right, in the face of my ancestors, to alter the limits of the power I have received from them. This conflict within me continues. I have not yet reached a final decision. One month ago it seemed easier to decide this question than it does now, after long reflection, when the moment for decision is drawing near. During all this time I have daily received scores of telegrams, letters, and petitions from all ends and corners of the Russian Land, from people of all classes. They express their touching feelings of loyalty to me, pleading with me not to limit my power and thanking me for the rights granted by the Manifesto of October 17. As I ponder the idea of these people, I feel that they wish the Manifesto of October 17, and the rights granted by it to my subjects, to be preserved, but that not one step further be taken and that I remain the autocrat of all the Russias.
I tell you most sincerely, believe me, that if I were convinced that Russia wanted me to abdicate my autocratic powers, I should gladly do it for the sake of its welfare. I issued the Manifesto of October 17 with all deliberateness, and I am firmly resolved to bring it to completion. But I am not convinced that it is necessary at the same time to abdicate my autocratic powers and to alter the definition of supreme authority [Verkhovnaia vlast] as contained in article 1 of the Fundamental Laws for the past 109 years. It is my conviction that, for many reasons, it is highly dangerous to change this article....I know, moreover, that leaving article 1 without changes will provoke agitation and attacks. But we should consider the source whence the reproach will come. It will come, of course, from the entire so-called educated element, the proletarians, the third estate. But I am confident that 80 percent of the Russian people will be with me, will support me, and will be grateful to me for such a decision...
Article 4 is the most important in the entire draft. But the question of my perogatives is a matter for my conscience, and I shall decide whether the article should be left as it is or altered.
I.L. GOREMYKIN: Eighty percent of the population will be distrubed, and many of them will be displeased, by a limitation of the boundaries of sovereign power...
COUNT K.I. PALEN [PAHLEN]: The entire question is whether the word "unlimited" [neogranichennyi] is to be left in article 1 [i.e. in the old version]. I entertain no sympathies for the Manifesto of October 17, but it exists. Until that time, you possessed the unlimited right to issue laws; but since October 17, Your Majesty can no longer issue laws by yourself, without the legislative institutions....The word "unlimited" cannot remain in the Fundamental Laws.