"Because of the diverse conditions of humans, it happens that some acts are virtuous to some people, as appropriate and suitable to them, while the same acts are immoral for others, as inappropriate to them"

This quote by Thomas Aquinas speaks with the idea that morality is subjective and relative to the individual. He is recommending that what is considered moral or immoral is dependent on the individual's situations and environment. He is stating that what is thought about virtuous or immoral for a single person may not be the very same for another. This is since people have different experiences and backgrounds, and therefore various values and beliefs. Aquinas is stressing that morality is not outright, but rather is based on the individual's context and situation. He is recommending that morality should be evaluated on a case-by-case basis, rather than by a universal requirement.