Ninety percent of the book variations have no great value, because either they contain mistakes or they are based on fallacious assumptions; just forget about the openings and spend all that time on the endings.

People who want to improve should take their defeats as lessons, and endeavor to learn what to avoid in the future. You must also have the courage of your convictions. If you think your move is good, make it.

You may learn much more from a game you lose than from a game you win. You will have to lose hundreds of games before becoming a good player.

Chess books should be used as we use glasses: to assist the sight, although some players make use of them as if they thought they conferred sight

Chess is a very logical game and it is the man who can reason most logically and profoundly in it that ought to win.

I have not given any drawn or lost games, because I thought them inadequate to the purpose of the book.

Ninety percent of the book variations have no great value, because either they contain mistakes or they are based on fallacious assumptions; just forget about the openings and spend all that time on the endings.