p.24 there is a rule called the 90% rule, which states that in 90% of
all situations the move which is correct for positional reasons works out tactically.
p.30 I have often noticed that a piece is best improved to the point where it is just one move away
from its ideal square. Only when our pieces occupy this position are they ready to be transformed into their perfect
state.
p.35-36 All positional chess is in some respect related to the existence
of weaknesses in either your or the opponent's position... A weakness is only weak if it can be exploited/
attacked... Weaknesses are always defined according to the pieces that remain on the board.
p.40 An important part of positional play is to create permanent weaknesses in the opponent's camp.
p.42 The idea of the rule of two weaknesses is that, in order to win in the endgame your opponent needs
to have two weaknesses... Of course one weakness is occasionally enough
p.50 The fewer pieces there are on the board the more squares will become available for the heavy
pieces and, consequently, their strength increases for every exchange.
p.65 Material is another positional factor. It is as simple as that.
