When a man makes an agreement which he does not fulfil, unless the agreement be of a nature which the law or a vote of the assembly does not allow, or which he has made under the influence of some unjust compulsion, or which he is prevented from fulfilling against his will by some unexpected chance, the other party may go to law with him in the courts of the tribes, for not having completed his agreement, if the parties are not able previously to come to terms before arbiters or before their neighbours.  The class of craftsmen who have furnished human life with the arts is dedicated to Hephaestus and Athene; and there is a class of craftsmen who preserve the works of all craftsmen by arts of defence, the votaries of Ares and Athene, to which divinities they too are rightly dedicated.  All these continue through life serving the country and the people; some of them are leaders in battle; others make for hire implements and works, and they ought not to deceive in such matters, out of respect to the Gods who are their ancestors.  If any craftsman through indolence omit to execute his work in a given time, not reverencing the God who gives him the means of life, but considering, foolish fellow, that he is his own God and will let him off easily, in the first place, he shall suffer at the hands of the God, and in the second place, the law shall follow in a similar spirit.  He shall owe to him who contracted with him the price of the works which he has failed in performing, and he shall begin again and execute them gratis in the given time.  When a man undertakes a work, the law gives him the same advice which was given to the seller, that he should not attempt to raise the price, but simply ask the value; this the law enjoins also on the contractor; for the craftsman assuredly knows the value of his work.  Wherefore, in free states the man of art ought not to attempt to impose upon private individuals by the help of his art, which is by nature a true thing; and he who is wronged in a matter of this sort, shall have a right of action against the party who has wronged him.  And if any one lets out work to a craftsman, and does not pay him duly according to the lawful agreement, disregarding Zeus the guardian of the city and Athene, who are the partners of the state, and overthrows the foundations of society for the sake of a little gain, in his case let the law and the Gods maintain the common bonds of the state.  And let him who, having already received the work in exchange, does not pay the price in the time agreed, pay double the price; and if a year has elapsed, although interest is not to be taken on loans, yet for every drachma which he owes to the contractor let him pay a monthly interest of an obol.  Suits about these matters are to be decided by the courts of the tribes; and by the way, since we have mentioned craftsmen at all, we must not forget that other craft of war, in which generals and tacticians are the craftsmen, who undertake voluntarily or involuntarily the work of