In my opinion, the King's Gambit is busted. It loses by force. - Caryl Chessman

The Game of Chess is not merely an idle amusement; several very valuable qualities of the mind, useful in the course of human life, are to be acquired and strengthened by it, so as to become habits ready on all occasions; for life is a kind of Chess, in which we have often points to gain, and competitors or adversaries to contend with, and in which there is a vast variety of good and ill events, that are, in some degree, the effect of prudence, or the want of it. By playing at Chess then, we may learn: 1st, Foresight, which looks a little into futurity, and considers the consequences that may attend an action … 2nd, Circumspection, which surveys the whole Chess-board, or scene of action:—the relation of the several Pieces, and their situations; … 3rd, Caution, not to make our moves too hastily.

Chess and Islam were born about the same time — chess out of a regional need to understand complex new ideas, and Islam out of the Arabs' desperate need for discipline, intelligence, and meaningful community. [...] In Persia the Muslims encountered chatrang, the bloodless new war game which relied solely on players' intellect. Chess and Islam complemented each other well: a new game of war, wits and self-control serving a spirited new religious and social movement organized around the same values.

That which has reached us from the discoveries of their clear thinking and the marvels of their inventions is the (game) of chess. The Indians have, in the construction of its cells, its double numbers, its symbols and secrets, reached the forefront of knowledge. They have extracted its mysteries from supernatural forces. While the game is being played and its pieces are being maneuvered, there appear the beauty of structure and the greatness of harmony. It demonstrates the manifestation of high intentions and noble deeds, as it provides various forms of warnings from enemies and points out ruses as well as ways to avoid dangers. And in this, there is considerable gain and useful profit.