Abstract
In Aristotle’s writings, there is a current relationship between investigation and deliberation. This paper will make a reassessment of such relationship and it will try to reject a mere analogical relationship between investigation and deliberation, which, as will be explained, is founded upon a strong distinction between theoretical and practical reason. This paper will try to prove a stronger relationship between investigation and deliberation, showing that there is neither their object nor their rational and cognitive abilities what differentiate one from another, but simply their aim: investigation is the genus of deliberation, and subsequently, a distinction should be made between theoretical and practical investigation or deliberation, the latter being different from the former because its aim is to find the way to reach a given state of affairs, which depends not on the object itself, like in theoretical investigation, but on the agent.