When Johan Cruyff returned to Amsterdam to play for Ajax in 1981, I was 12-years-old and living in the Netherlands. I spent my teens imbibing everything he said about soccer. It was as if you could read a conversation with Einstein in the paper every few days.
Cruyff said things you could use at any level of soccer. Don't give a square pass, because if it's intercepted the opposition has immediately beaten two men, you and the player you were passing to. Don't pass to a teammate's feet, but in front of him, so he has to run onto the ball, which speeds ups the game.