Thomas Aquinas discusses the nature of justice according to Aristotle. He defines justice as "a habit by which one renders to each his due through a constant and perpetual will." Justice concerns our dealings with others and aims to maintain order and equality in society. While justice may sometimes be done out of obligation rather than choice, it does not remove the merit in acting justly. Aquinas concludes that the central act of justice is to distribute both material goods and duties in a way that appropriately shares benefits and burdens among all people.