In a position where you have to look for a plan, think first about what kind of pawn-play you should be aiming for. If no pawn-play is in prospect, ask yourself what to undertake with your pieces. Vladimir Popov, Chess Lessons
In opposite-coloured bishop endings keep your pawns on 'your' colour if you want to draw; if you are playing for a win you should keep your pawns on the opposite colour from your own bishop. Lars Bo Hansen, How Chess Games Are Won And Lost
To be a strong positional player it is necessary to have a freer relationship with material matters than is the case with most average players. Material is merely another positional factor. It is as simple as that. Jacob Aagaard, Excelling At Positional Chess
The golden rule of good technique is 'do not hurry'! In endings, the tempo is usually slower, and one should seize every little advantage, even if it is not obvious that the factor concerned will actually matter. Steve Giddins, 50 Essential Chess Lessons
Do not trust anyone, and check everything for yourself. Try to understand the ideas behind each move. Andreas Tzermiadianos, How To Beat The French Defence
Looking for stalemate opportunities is one of the major tools that the defender should employ in trying to save inferior endgames. Edmar Mednis, Practical Endgame Tips