The philosopher who suggested Wisdom, Courage, Temperance, and Justice as four ‘cardinal virtues’ is Plato.

Plato was a Greek philosopher who lived in Athens in the 4th century BCE. In his work, the Republic, Plato discusses the concept of justice and argues that a just society is one in which every individual performs their appropriate role based on their abilities.

As a part of this discussion, Plato suggests four cardinal virtues that individuals should cultivate in order to lead a virtuous life and contribute to a just society. These virtues are Wisdom, Courage, Temperance, and Justice.

Wisdom is the virtue of understanding the fundamental truths about the world and ourselves. It involves using reason and intellect to make sound judgments and decisions.

Courage is the virtue of facing fear and adversity with bravery and determination. It involves taking risks when necessary and standing up for what is right, even in the face of opposition.

Temperance is the virtue of self-control and moderation. It involves exercising restraint and discipline in all aspects of life, including food, drink, and pleasure.

Justice is the virtue of treating others fairly and equitably. It involves respecting the rights and dignity of all individuals and contributing to the common good.

Overall, Plato believed that cultivating these four cardinal virtues is essential for leading a virtuous life and contributing to a just society. His ideas have had a significant influence on Western philosophy and continue to be studied and discussed today.