XXXVII. (193) Again, merchants and pedlars, and people in the market, and all those who deal in things necessary for life, {43}{#le 19:36.} and who in consequence are conversant with measures, and weights, and balances, since they sell things both dry and wet, are put in subjection to the superintendants of the market, and these superintendants are bound to govern them if they act with moderation, doing what is right, not out of fear, but voluntarily, for spontaneous good conduct is in every case more honourable than that which proceeds from compulsion. (194) On which account the law orders these merchants and dealers, and all other persons who have adopted this way of life, to take care to provide themselves with just balances, and measures, and weights, not practising any wicked manoeuvres to the injury of those who purchase of them, but to do and say everything with a free and guileless soul, considering this, that unjust gains are injurious, but that that wealth which is acquired in accordance with justice a man cannot be deprived of; (195) and since wages are offered to artisans as a reward for their work, and since it is people in want who are artisans, and not men who have an abundance of wealth, the law commands that the payment of their wages shall not be delayed, but that their employers shall pay them the wages agreed upon the same day that they are earned; {44}{#de 24:15.} for it is absurd for the rich to avail themselves of the services of the poor, and yet for those who live in plenty and affluence not at once to give the poor the proper remuneration for those services. (196) Are not these things very conspicuous instances to teach us to guard against greater offences? For he who will not allow a payment which is sure to be eventually repaid to be delayed beyond the proper time, fixing the evening of the day for the time on which the artisan, at his return home, is to carry his wages home with him, does not he much more by such a commandment prohibit rapine and theft, and the repudiation of debts, and all things of that sort, fashioning and moulding the soul according to the approved characteristics of virtue and piety?