The sixth advantage is somewhat astrological in character: as there are four principal movements of chess, these answer to the four physical temperaments, Cold, Warm, Dry, and Wet, which are ruled by their respective planets; and thus each piece on the board is made to have its peculiar significance in relation with the stars. It is further shewn, that chess-playing is remedial against many of the lesser bodily ailments; 'and no illness is more grievous than hunger and thirst, yet both of these, when the mind is engaged in chess, are no longer thought of.' Next in order, the seventh advantage, is 'in obtaining repose for the soul;' as the author observes: 'The soul hath illnesses like as the body hath, and the cure of these last is known; but of the soul's illness there be also many kinds, and of these I will mention a few.' These are ignorance, disobedience, haste, cunning, avarice, tyranny, lying, pride, deceit, and envy. Deceit is said to be of two kinds: that which deceives others, and that which deceives ourselves. But of all evils, ignorance is the greatest; 'for it is the soul's death, as learning is its life; and for this disease is chess an especial cure, since there is no way by which men arrive more speedily at knowledge and wisdom; and in like manner, by its practice, all the faults which form the diseases of the soul are converted into their corresponding virtues.' It is not to be doubted that chess-playing may keep individuals out of mischief; but, whatever may have been the case in ancient times, we do not hear of its transforming vicious characters into virtuous ones in our days. The eighth advantage is social, inasmuch as it brings men of different degrees together, and promotes their intimacy and friendship; and 'advantage the ninth, is in wisdom and knowledge, and that wise men do play chess; and to those who object that foolish men also play chess, and, though constantly engaged in it, become no wiser, it may be answered, that the distinction between wise and foolish men in playing chess, is as that of man and beast in eating of the tree--that the man chooses its ripe and sweet fruit, while the beast eats but the leaves and branches, and the unripe and bitter fruit; and so it is with players at chess--the wise man plays for those virtues and advantages which have been already mentioned, and the foolish man plays it but for mere sport and gambling, and regards not its advantages and virtues. This is the condition of the wise man and foolish man in playing chess.' From this it seems a descent to the tenth advantage, which is, that chess combines war with sport; and pleasant allegories are made subservient to the inculcation of sound truths and important principles.