Kortchnoi's heritage is many-faceted - over the decades he has several times corrected and changed his style. But the main thing has invariably remained his search for chess truth.

A grandmaster must memorize thousands of chess duels in his head, as these are for him what words of the mother tongue are to the ordinary people and what notes are to a musician.

It could truly be the case that Vladimir Putin has miscalculated in the long term with his adventure in Syria.

Vladimir Putin has this animalistic instinct of all dictators: He smells weakness. To quote Winston Churchill's definition of appeasement: "An appeaser is one who feeds a crocodile, hoping it will eat him last."

We should simply accept the fact that the way machines make decisions is different, and rather look at the result. If machines are providing results that we are looking for, you would mind how much human understanding was used in the process. And more likely we should look for the way of combining human skills and machine skills. And that, I believe, is the future role of humanity, is just to make sure it will be using this immense power of brute force of calculation for our benefit.

Nervous energy is the ammunition we take into any mental battle. If you don't have enough of it, your concentration will fade. If you have a surplus, the results will explode.

My mother lives in Moscow, and I would like to visit her. Now she always has to travel to Finland or a Baltic country to meet me. But I have to expect that my papers would be confiscated in Moscow immediately, and that they would harass my family. I can still have more impact in the West with my books and lectures.