You have to accustom yourself to practical study at home, you have to devote time to studies, to the history of chess, the development of chess theory, of chess culture.
Mikhail BotvinnikWith opposite coloured bishops the attacking side has in effect an extra piece in the shape of his bishop.
Mikhail BotvinnikIf Tal would learn to program himself properly, then it would become quite impossible to play against him.
Mikhail Botvinnik