Show me three lines of the opening theory moves and I will prove to you that two of them are incorrect.
Emanuel LaskerHaving spent 200 hours on the above, the young player, even if he possesses no special talent for chess, is likely to be among those two or three thousand chessplayers [who play on a par with a master]. There are, however, a quarter of a million chessplayers who annually spend no fewer than 200 hours on chess without making any progress. Without going into any further calculations, I can assert with a high degree of certainty that nowadays we achieve only a fraction of what we are capable of achieving.
Emanuel LaskerWhen Alekhine recognizes the weakness in his position he has a tendency to become very aggressive. Patient defence is not for him if he can see the slightest chance of creating an attack. Yet sound strategy often demands that you submit to the opponent's will so as to strengthen your weaknesses and get rid of defects in your game.
Emanuel Lasker... in itself the title of world champion does not give any significicant advantages, if it is not acknowledged by the entire chess world, and a champion who does not have the chess world behind him is, in my view, a laughing-stock.
Emanuel Lasker