Niccolò Machiavelli
Discourses on the First Decade of Titus Livius (Chap. 1.24)
That well-ordered States always provide Rewards and Punishments for their Citizens; and never set off Deserts against Misdeeds.

The valour of Horatius in vanquishing the Curiatii deserved the highest reward. But in slaying his sister he had been guilty of a heinous crime. And so displeasing to the Romans was an outrage of this nature, that although his services were so great and so recent, they brought him to trial for his life. To one looking at it carelessly, this might seem an instance of popular ingratitude, but he who considers the matter more closely, and examines with sounder judgment what the ordinances of a State should be, will rather blame the Roman people for acquitting Horatius than for putting him on his trial. And this because no well-ordered State ever strikes a balance between the services of its citizens and their misdeeds; but appointing rewards for good actions and punishment for bad, when it has rewarded a man for acting well, will afterwards, should he act ill, chastise him, without regard to his former deserts. When these ordinances are duly observed, a city will live long in freedom, but when they are neglected, it must soon come to ruin. For when a citizen has rendered some splendid service to his country, if to the distinction which his action in itself confers, were added an over-weening confidence that any crime he might thenceforth commit would pass unpunished, he would soon become so arrogant that no civil bonds could restrain him.

Still, while we would have punishment terrible to wrongdoers, it is essential that good actions should be rewarded, as we see to have been the case in Rome. For even where a republic is poor, and has but little to give, it ought not to withhold that little; since a gift, however small, bestowed as a reward for services however great, will always be esteemed most honourable and precious by him who receives it. The story of Horatius Cocles and that of Mutius Scævola are well known: how the one withstood the enemy on the bridge while it was being cut down, and the other thrust his hand into the fire in punishment of the mistake made when he sought the life of Porsenna the Etruscan king. To each of these two, in requital of their splendid deeds, two ploughgates only of the public land were given. Another famous story is that of Manlius Capitolinus, to whom, for having saved the Capitol from the besieging Gauls, a small measure of meal was given by each of those who were shut up with him during the siege. Which recompense, in proportion to the wealth of the citizens of Rome at that time, was thought ample; so that afterwards, when Manlius, moved by jealousy and malice, sought to arouse sedition in Rome, and to gain over the people to his cause, they without regard to his past services threw him headlong from that Capitol in saving which he had formerly gained so great a renown.