"It is necessary to posit something which is necessary of itself, and has no cause of its necessity outside of itself but is the cause of necessity in other things. And all people call this thing God"

In this quote by Thomas Aquinas, he goes over the idea of something that is necessary of itself, with no external cause for its need. He argues that this entity, typically referred to as God, acts as the reason for need in other things. Aquinas suggests the existence of a self-sufficient being that is the supreme source of all other necessities. The quote implies that Aquinas believes in the presence of a greater power, called God, who is the structure of all requirements on the planet. This idea lines up with Aquinas' doctrinal and philosophical views on the nature and existence of God.