I certainly want to be involved in politics and help shape the transition. I am in contact with regime critics who had to leave for the West. One of them is Mikhail Khodorkovsky, the former businessman, who had to endure 10 years in a prison camp.

If critics and competitors can't match your results, they will often denigrate the way you achieve them. Fast, intuitive types are called lazy. Dedicated burners of the midnight oil are called obsessed. And while it's obviously not a bad idea to hear and consider the opinions of others, you should be suspicious when these criticisms emerge right on the heels of success.

Many Republicans who traditionally were for a positive role in the world, anti-Russian, now they want to defend their party and leader, and they don't care about real arguments. The paradox is the Democrats were so timid in criticising Vladimir Putin. Barack Obama appeased him and now they are criticising Putin's interference in American democracy. It is a strange reversal of the roles.

We know that the governments in most of the successor states formed after the collapse of the Soviet Union are replaced through a process of regular elections.

There is no one that can share your responsibility. It it is your responsibility you must carry it on and you must be responsible for your actions. At the end of the day we all are being challenged, sooner or later, by our destiny. And it's up to us to make all the difference in this life. If not you, who else?

The growth of violent extremism is partly a consequence of how the developed world has become complacent and defensive about its own greatness and ambition.

Boris Nemtsov and I began to argue after Putin's return to the presidency in 2012. In my opinion, there was no longer a realistic chance to achieve regime change through peaceful political means, or real elections. Boris, on the other hand, never lost this hope. He felt that my assessment was premature and said: "You have to live a long time to see changes in Russia." He was deprived of that opportunity.