The knight of QB3 is under obligation, the moment the enemy gives him the chance, of undertaking an invasion of the center by Kn-Q5.

If in a battle, I seize a bit of debatable land with a handful of soldiers, without having done anything to prevent an enemy bombardment of the position, would it ever occur to me to speak of a conquest of the terrain in question? Obviously not. Then why should I do so in chess?

The passed Pawn is a criminal, who should be kept under lock and key. Mild measures, such as police surveillance, are not sufficient

No pawn exchanges, no file-opening, no attack.

The main Objective of any operation in an open file is the eventual Occupation of the seventh or eighth Rank.

When I today ask myself whence I got the moral courage, for it takes moral courage to make a move (or form a plan) running counter to all tradition, I think I may say in answer, that it was only my intense preoccupation with the problem of the blockade which helped me to do so.

The beauty of a move lies not in its appearance but in the thought behind it.