Chess is a mental exercise that can be pursued for its own sake or for some other reason. The skills required to play a strong chess game include the ability to visualize, the ability to memorize, the ability to recognize patterns, the ability to use analytic logic, the ability to plan ahead, the ability to make decisions, and the ability to accept the consequences of your actions. Is it any wonder that chess is touted as a useful subject for study in many schools?
— The Everything Chess Basics Book
by Peter Kurzdorfer