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?
Garry KasparovA very strong player can manage and can just know how to manage a thousand positions. I get it; it's a very arbitrary number. So then you have the world champion who could do more. But, again, any increase in numbers creates, sort of, a new level of playing. And then you go to the very top, and the difference is so minimal, but it does exist. So even a few players who never became world champion, like Vassily Ivanchuk, for instance, I think they belong to the same category.
Garry KasparovA grandmaster needs to retain thousands of games in his head, for games are to him what the words of their mother tongue are to ordinary people, or notes or scores to musicians.
Garry KasparovAny experienced player knows how a change in the character of the play influences your psychological mood.
Garry Kasparov