<blockquote><em>"After white's reply to 1.e4 e5 with 2.f4 the game is in its last throes"</em></blockquote>
"The most important feature of the chess position is the activity of the pieces. This is absolutely fundamental in all phases of the game (opening, middlegame and especially endgame). The primary constraint on a piece's activity is the Pawn structure."
|Michael STEAN, in Simple Chess.|