Inductive or deductive

'Contemplation is the greatest good,' was stated by Aristotle. What do you think he was referring to? Was it inductive or deductive reasoning. How does this lead up to Descartes' 'cogito ergo sum'?

For Aristotle contemplation means the theoria, the intellectual knowledge, opposite to action or praxis. When Aristotle talk about philosophy he uses the term metaphysics, the "first philosophy", the main science that could investigate "the knowledge of immaterial being". By saying "contemplation is the greatest good" Aristotle refers to the importance of knowledge.

However, how can I tell if it was inductive or deductive reasoning? it's just a sentence! It's talking about the search of knowledge in general, without specifying which method to follow: it's both inductive and deductive, depending on the situations. 

Still, this lead up to Descartes 'cogito ergo sum': for Descartes "cogito" refers to that part of the spiritual substance that can never be doubted. It represents the foundation of the subjective certainty of being alive and the measuring unit of every other possible certainty. Descartes give to "cogito", the action of thinking, the supremacy of knowledge, which is exactly what Aristotle meant with "contemplation is the greatest good": to them, reason is the most certain way of knowing.