Young players calculate everything, a requirement of their relative inexperience.

The only good Rook is a working Rook!

It often happens that a player is so fond of his advantageous position that he is reluctant to transpose to a winning endgame.

Good players develop a tactical instinct, a sense of what is possible or likely and what is not worth calculating.

No matter how much theory progresses, how radically styles change, chess play is inconceivable without tactics.

Tartakower once wrote that after planting a Knight in the center you can go to sleep. This is not to be taken literally, of course, but it contains more than a germ of truth.

Young players calculate everything, a requirement of their relative inexperience.