81.1-3
1. You complain that you have met with an ungrateful person. If this is your first experience of that sort, you should offer thanks either to your good luck or to your caution. In this case, however, caution can effect nothing but to make you ungenerous. For if you wish to avoid such a danger, you will not confer benefits; and so, that benefits may not be lost with another man, they will be lost to yourself. It is better, however, to get no return than to confer no benefits. Even after a poor crop one should sow again; for often losses due to continued barrenness of an unproductive soil have been made good by one year's fertility. 2. In order to discover one grateful person, it is worth while to make trial of many ungrateful ones. No man has so unerring a hand when he confers benefits that he is not frequently deceived; it is well for the traveller to wander, that he may again cleave to the path. After a shipwreck, sailors try the sea again. The banker is not frightened away from the forum by the swindler. If one were compelled to drop everything that caused trouble, life would soon grow dull amid sluggish idleness; but in your case this very condition may prompt you to become more charitable. For when the outcome of any undertaking is unsure, you must try again and again, in order to succeed ultimately. 3. I have, however, discussed the matter with sufficient fulness in the volumes which I have written, entitled “On Benefits.”