Energy is connected to physical fitness. One of the reasons I stayed at the top so long is that I was tremendously fit. At 36, I was fitter than most opponents ten years younger.

Ukraine had quite serious impact on the many Russians. They could see that ordinary people in Ukraine which is a bordering state, very close to Russia, the people of this state are, they didn't want to tolerate anymore the power abuse by Ukrainian officials.

The ability to work hard for days on end without losing focus is a talent. The ability to keep absorbing new information after many hours of study is a talent.

You're always going to have dangerous, disaffected people in any society, and some will be violent. Increasing prosperity and reducing inequality won't solve that completely. But having big, positive dreams and a society that makes it possible to achieve those dreams is what we must strive for.

Values-oriented foreign policy of the free world would be much better, supported by the self-awareness of being on the right side of history.

If you make a decision to fight for future of your own country you have to consider all the consequences.

We see threats to liberal democracy coming from lots of directions. We have to create something new, a common response, because in so many places - the UK, France, Germany - ultranationalists and the far left threaten the free market and liberal democracy.