The most hopeful approach to peace in Ukraine is the Minsk Agreement, which includes Moscow.

If you're already in a fight, you want the first blow to be the last and you had better be the one to throw it.

Alexei Navalny, the opposition politician who has led anti-corruption protests, had a blog about a credit line to a company owned by Vladimir Putin's son-in-law, $1.75 billion from Russian state funds; this is one transaction. Putin controls more money directly and indirectly than any individual in human history.

The downfall of democratic institutions in Russia doesn't add to the self-confidence of either [Vladimir] Putin or his friends, as the loss of power could lead to repercussions in Russian society.

Furthermore, a large portion of the assets of leading Russian figures is mixed, meaning that it is not quite clear how to counter this development.

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.

I have no idea how long Putin will last. The good news is, Putin doesn't know either. It will be sudden and it won't be peaceful. He has burned his bridges.