Who is st.thomas aquinas in terms of realism?

(explain in a simple way)

St. Thomas Aquinas was a medieval philosopher and theologian who is known for his contributions to the philosophy of realism. Realism, in this context, refers to the belief that there is an objective reality that exists independently of our thoughts or perceptions.

Aquinas argued that reality is composed of both material and immaterial aspects. He believed that there is a natural order and structure to the world, with each thing having its own unique essence and purpose. He emphasized the importance of observation and reason in understanding this reality.

Aquinas also held that God is the ultimate source and sustainer of reality. He believed that through our senses and intellect, we can come to know and understand the world as it truly is, ultimately leading to a better understanding of God's creation.

In summary, St. Thomas Aquinas is a philosopher who believed in the objective reality of the world, the importance of observation and reason in understanding it, and the role of God in creating and sustaining this reality.