In this paper, I will deliver a reconstruction of Descartes’ Cogito Argument and my reasoning to validate it as indubitable. I will do so by justifying my interpretations through valid arguments and claim, by showcasing examples with reasoning. Rene Descartes is a French Philosopher of the 17th century, who formulated the philosophical Cogito argument by the name of ‘cogito ergo sum,’ also known as “I think, therefore, I am.” Rene was a skeptic philosopher amongst many scholastic philosophers of his time. To interpret his cogito argument as indubitable and whether it could serve as a foundational belief, he took a skeptical approach towards the relations between thoughts and existence. Rene Descartes’ statement, “I think, therefore, I am” laid the foundation for his Cogito Argument in the Mediations. Throughout his groundwork we come to interpret that “I think, whatever thinks, must exists, so I exist, and whatever exists is a thing, so I exist as a thinking thing”, and so he knew this with certainty. In the mediator’s search for certainty, Descartes had to disregard anything that was doubtful or wrong. He chose to lay a new canvas and threw away all his previous knowledge and understanding to start anew. And so, from here, Descartes searched for facts he knew with certainty. In order for his opinions and knowledge not to interfere with his perception, he chose to doubt everything. And so, he even chose to doubt the existence of the physical body and continued to stay