This article contains a selection of thoughts of Thomas Aquinas on various topics. It is not intended as a complete account of Aquinas's thought. Within Aquinas' thought is included the philosophical school of Thomism.n distributive justice something is given to a private individual, in so far as what belongs to the whole is due to the part, and in a quantity that is proportionate to the importance of the position of that part in respect of the whole. Consequently in distributive justice a person receives all the more of the common goods, according as he holds a more prominent position in the community. This prominence in an aristocratic community is gauged according to virtue, in an oligarchy according to wealth, in a democracy according to liberty, and in various ways according to various forms of community. Hence in distributive justice the mean is observed, not according to equality between thing and thing, but according to proportion between things and persons: in such a way that even as one person surpasses another, so that which is given to one person surpasses that which is allotted to another.For those who have been appropriately appointed, there is no sin in administering punishment. For those who refuse to obey God's laws, it is correct for society to rebuke them with civil and criminal sanctions. No one sins working for justice and within the law. Actions that are necessary to preserve the good of society are not inherently evil. The common good of the whole society is greater and better than the good of any particular person. 'The life of certain pestiferous men is an impediment to the common good which is the concord of human society. Therefore, certain men must be removed by death from the society of men.' This is likened to the physician who must amputate a diseased limb, or a cancer, for the good of the whole person.With regard to heretics two points must be observed: one, on their own side; the other, on the side of the Church. On their own side there is the sin, whereby they deserve not only to be separated from the Church by excommunication, but also to be severed from the world by death. For it is a much graver matter to corrupt the faith which quickens the soul, than to forge money, which supports temporal life. Wherefore if forgers of money and other evil-doers are forthwith condemned to death by the secular authority, much more reason is there for heretics, as soon as they are convicted of heresy, to be not only excommunicated but even put to death.On the part of the Church, however, there is mercy which looks to the conversion of the wanderer, wherefore she condemns not at once, but 'after the first and second admonition,' as the Apostle directs: after that, if he is yet stubborn, the Church no longer hoping for his conversion, looks to the salvation of others, by excommunicating him and separating him from the Church, and furthermore delivers him to the secular tribunal to be exterminated thereby from the world by death. For Jerome commenting on Galatians 5:9, 'A little leaven,' says: 'Cut off the decayed flesh, expel the mangy sheep from the fold, lest the whole house, the whole paste, the whole body, the whole flock, burn, perish, rot, die. Arius was but one spark in Alexandria, but as that spark was not at once put out, the whole earth was laid waste by its flame.' (ST II:II 11:3 corpus) This article contains a selection of thoughts of Thomas Aquinas on various topics. It is not intended as a complete account of Aquinas's thought. Within Aquinas' thought is included the philosophical school of Thomism.