"The ideal of each pawn is to become a queen."
"Don't move your pawns too far ahead, since you cannot retreat them." (Philidor)
"As Jean-Jacques Rousseau
could not write without his favourite cat beside him, I cannot play a game
without the king's bishop. When it is missing, I think the game is without
any
contents and I miss the
main attacking piece very much." (Tarrasch)
"If you have a choice between
mating your opponent or taking his queen - do the latter. The former may
not have been a mate, while a queen is a queen."
"There are many checks,
but the mate is one!" (Russian proverb)
"First think, then make
your move, and not the other way around."