When [Vladimir] Putin, a former lieutenant-colonel in the KGB, became Russia's president on December 31, 1999 - eight years after the failed coup attempt against (then Soviet leader Mikhail) Gorbachev, and eight years after the people had torn down the statue of Felix Dzerzhinsky, the hated founder of the KGB, in Moscow - it was admittedly a shock. Nevertheless, I decided to give Putin a chance. He seemed dynamic and capable of learning. But I had to bury my hopes after just a few months. He proved to be an autocrat - and, because the West let him do as he pleased, he became a dictator.

There's the blazing Russian Caucasus, with an ongoing war all against all, which is not to be neglected.

We must be optimistic about the future because it's a self-fulfilling prophecy. If we are creative and ambitious, intelligent machines will liberate us and be as profound a boon to our prosperity as electricity. If we are fearful, and fail to press ahead, we could be overwhelmed by automation and inequality.

His teaching became a turning point in chess history: it was from Steinitz that the era of modern chess began. The contribution of the first world champion to its development is comparable with the great scientific discoveries of the 19th century.

If you wish to succeed, you must brave the risk of failure.

There is no doubt that [Vladimir] Putin is responsible for this crime, whether or not he gave the order to commit the murder [of Boris Nemtsov] himself. Putin created the conditions and atmosphere that have made this kind of thing possible.

We shouldn't forget that in the case of Georgia, a problem was done away with that bothered [Vladimir] Putin personally - that is, the security during the Winter Olympics in Sochi in 2014. Security not in the sense of a guaranteed absence of a terror attack, but in pursuing the aim of moving hot spots of possible conflict farther from the site of the Olympic Games, which are to be held a stone's throw from Abkhazia - that is, in de jure Georgia.